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Aristotle University of Thessaloniki
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Paraskevas Tzanavaras
Associate Professor, School of Chemistry
Personal Information
2310997721
ptzanava@chem.auth.gr
Scopus ID
6602828277
https://orcid.org/0000-0002-2366-6038
Γνωστικό Αντικείμενο
:
ΑΝΑΛΥΤΙΚΗ ΧΗΜΕΙΑ - ANALYTICAL CHEMISTRY
Επιστημονική Ειδίκευση
:
Χημεία
Education
Προπτυχιακές Σπουδές
1998
ΠΤΥΧΙΟ ΧΗΜΕΙΑΣ, BSc CHEMISTRY
ΤΜΗΜΑ ΧΗΜΕΙΑΣ/ΣΧΟΛΗ ΘΕΤΙΚΩΝ ΕΠΙΣΤΗΜΩΝ
ΑΡΙΣΤΟΤΕΛΕΙΟ ΠΑΝΕΠΙΣΤΗΜΙΟ
Greece
Διδακτορικό Δίπλωμα
2003
ΑΝΑΛΥΤΙΚΗ ΧΗΜΕΙΑ
ΤΜΗΜΑ ΧΗΜΕΙΑΣ/ΣΧΟΛΗ ΘΕΤΙΚΩΝ ΕΠΙΣΤΗΜΩΝ
ΑΡΙΣΤΟΤΕΛΕΙΟ ΠΑΝΕΠΙΣΤΗΜΙΟ
Greece
ΑΝΑΛΥΤΙΚΗ ΧΗΜΕΙΑ
Course Work
Courses of Winter semester of 2025–26 academic year
SCHOOL OF CHEMISTRY
Κ205
Organology
Κ209
Instrumental Chemical Analysis ΙΙ
Υ02
Basics Principles of Analytical Chemistry
ΥΧΥ151
Principles of Analytical Chemistry
ΥΧΥ251
Quantitative Chemical Analysis
ΥΧΥ451
Instrumental Chemical Analysis II
SCHOOL OF PHARMACY
4
QUALITATIVE ANALYTICAL CHEMISTRY
ΝΠ-02
ANALYTICAL CHEMISTRY
ΝΠ18-03
Analytical Chemistry
Postgraduate Program “Quality Control-Chemical Analysis-Environment”
Μ2Υ11
Spectrometric and Automatic Techniques in Chemical Analysis
Μ2Υ21
Standard Spectrometric and Automatic Techniques in Chemical Analysis
Courses of Spring semester of 2025–26 academic year
SCHOOL OF CHEMISTRY
ΕΧΥ454
Instrumentation
Κ205
Organology
Υ08
Quantitative Chemical Analysis
Υ18
Instrumental Chemical Analysis I
SCHOOL OF PHARMACY
4
QUALITATIVE ANALYTICAL CHEMISTRY
Postgraduate Program “Quality Control-Chemical Analysis-Environment”
Μ2Υ14
Quality Assurance, Chemometrics and Metrology
Μ2Υ24
Quality management, Chemometrics and Metrology
Theses Supervised
Student Theses within AUTh
In progress
Doctoral
No title
Postgraduate
No title
No title
Undergraduate
No title
2024–2025
Undergraduate
DEVELOPMENT OF A LOW COST METHOD FOR THE DETERMINATION OF LEVOFLOXACIN BASED ON COMMON IMAGING DEVICES
STUDY OF THE REACTION BETWEEN RESORCINOL AND DOPAMINE UNDER FLOW CONDITIONS
STUDY OF THE REACTION OF DOXYCYCLINE WITH MAGNESIUM IONS UNDER FLOW CONDITIONS
DETERMINATION OF HISTAMINE IN FOOD SAMPLES BASED ON DERIVATIZATION
Postgraduate
No title
Doctoral
No title
2023–2024
Postgraduate
No title
2022–2023
Postgraduate
Determination of colistin in human urine using liquid chromatography coupled to on-line post column derivatization
2021–2022
Postgraduate
HPLC DETERMINATION OF GLUTATHIONE DISULFIDE IN HUMAN SALIVA USING A CORESHELL COLUMN COUPLED TO ON-LINE POST COLUMN DERIVATIZATION WITH O-PHTHALALDEHYDE
HPLC determination of histidine in human saliva using ion chromatography coupled to on-line post column derivatization
Undergraduate
Study of the on-line hydrolysis of S-S bonds under highly alkaline medium.
2020–2021
Postgraduate
DETERMINATION OF ΗΙSTIDINE IN BIOLOGICAL SAMPLES BY ION CHROMATOGRAPHY COUPLED TO POST COLUMN DERIVATIZATION
DETERMINATION OF HISTAMNE IN CHEESE AND CURED MEAT PRODUCTS USING ION CHROMATOGRAPHY COUPLED TO ON-LINE POST COLUMN DERIVATIZATION WITH O-PHTHALALDEHYDE
Automated sequential injection determination of histidine in random human urine.
2019–2020
Postgraduate
Sequential injection determination of reduced and oxidized glutathione in yeast samples and dietary supplements, using o-phthalaldehyde as derivatization reagent
Undergraduate
DETERMINATION OF CYANIDES IN WATER SAMPLES USING AUTOMATED FLOW TECHINQUES
Automated determination of glutathione in nutraceuticals using sequential injection analysis
Determination of phosphates using flow injection analysis (FIA)
DEVELOPMENT OF AN AUTOMATED SIA METHOD FOR THE DETERMINATION OF HOMOCYSTEINE IN ARTIFICIAL URINE
2018–2019
Postgraduate
Sequential injection determination of hydrazine using o-phthalaldehyde as derivatization reagent.
2012–2013
Postgraduate
Study of the reaction of thiols with the derivatization reagent 2-chloro-1-methylquinoline tetrafluoroborate under flow conditions
2011–2012
Postgraduate
No title
2010–2011
Postgraduate
No title
2009–2010
Postgraduate
No title
No title
2008–2009
Postgraduate
No title
Unknown
Undergraduate
BIOLOGICAL ROLE AND METHODS OF DETERMINATION OF HISTAMINE IN BIOLOGICAL SAMPLES
DETERMINATION OF GLUTATHIONE IN FOOD SAMPLES
Research Projects
Coordinator
2022–2024
High-pressure liquid chromatography coupled to post-column derivatization: development of novel analytical methods and modes
2012–2012
Synthesis of gold nanoparticles under flow conditions using SIA
Participant
2019–2020
1999–1999
Laboratory chemical applications.
1998–2026
Πληρωμή μέλους ΔΕΠ ΑΠΘ
Publications
(2025)
Journal Article
Gougousi Iliana
,
Tarara Maria
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Tsogkas Georgios
.
(2025)
.
Smartphone-based fluorimetric assay for the determination of doxycycline in in-vitro dissolution studies using 96 well-plates
.
Microchemical Journal
.
vol.215 p.114464 (8 pages)
Kasem Halil
,
Ntorkou Marianna
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2025)
.
Application of AQbD principles on the development of a stability-indicating HPLC method for the determination of acetylsalicylic acid, ramipril and atorvastatin in their fixed-dose polypills
.
Analytical Methods
.
vol.17 no.17 p.3459-3470
Ntorkou Marianna
,
Bikiaris Nikolaos D.
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2025)
.
Expanding the applicability of biocompatible Salivette® as extraction sorbent in pipette-tip format: Determination of memantine in human urine as proof-of-concept
.
Journal of Chromatography A
.
vol.1760 p.466316 (11 pages)
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2025)
.
Editorial of special issue “Sorbent-based microextraction in bioanalysis”
.
Microchemical Journal
.
vol.216 p.114816 (1 page)
(2024)
Journal Article
Baltzis Dimitrios
,
Zacharis Konstantinos
,
Tsogkas Georgios
,
Tzanavaras Paraskevas
.
(2024)
.
High-throughput and green optical sensing of thiocyanate in human saliva based on microplates and an overhead book scanner as detector
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.248 p.Article number: 116317
Kavrentzos Alexandros
,
Vastardi Elli
,
Karavas Evangelos
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2024)
.
Analyzing Alkyl Bromide Genotoxic Impurities in Febuxostat Based on Static Headspace Sampling and GC-ECD
.
Pharmaceuticals
.
vol.17 no.4 p.Article number: 422
Manousi Natalia
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2024)
.
Microextraction based on liquid-solid phase transition of benzoic acid: Extraction of statins from human urine followed by chromatographic analysis
.
Talanta
.
vol.266 no.part 2 p.Article number: 125088
Melissaropoulou Dafni
,
Ntorkou Marianna
,
Tzanavaras Paraskevas
,
Kabir Abuzar
,
Zacharis Konstantinos
.
(2024)
.
Application of zwitterionic ionic liquid-based capsule phase microextraction for the HPLC-UV determination of doxycycline in human urine samples
.
Journal of Chromatography B
.
vol.1247 p.124320 (9 pages)
Ntorkou Marianna
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2024)
.
One step derivatization and switchable hydrophilicity solvent-based microextraction for the determination of adamantane analogues in human urine by HPLC-FLD
.
Advances in Sample Preparation
.
vol.12 p.100135 (10 pages)
Ntorkou Marianna
,
Doumtsi Antigoni
,
Solomou Styliani
,
Gontad Breixo A.
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2024)
.
A green liquid phase microextraction using phthalic acid as switchable hydrophilicity solvent for the HPLC determination of sildenafil (Viagra®) in human urine
.
Microchemical Journal
.
vol.204 p.111167 (8 pages)
Ntorkou Marianna
,
Kabir Abuzar
,
Furton Kenneth G.
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2024)
.
Sol-gel Carbowax 20M-zwitterionic ionic liquid composite sorbent-based capsule phase microextraction device combined with HPLC/post-column derivatization for the determination of lanreotide, a human somatostatin analogue in urine
.
Journal of Chromatography A
.
vol.1717 p.Article number: 464674
Samara Irene Maria
,
Ntorkou Marianna
,
Gioumouxouzis Christos
,
Karavasili Christina
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2024)
.
Analytical QbD for the optimization of a multimode HPLC method for the investigation of hydrochlorothiazide, diltiazem and propranolol release from 3D printed formulation
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.248 p.Article number: 116324
Tarara Maria
,
Tzanavaras Paraskevas
,
Tsogkas Georgios
.
(2024)
.
O-Phthalaldehyde Derivatization for the Paper-Based Fluorometric Determination of Glutathione in Nutritional Supplements
.
Molecules
.
vol.29 no.11 p.Article number: 2550
Terzi Maria
,
Theodorou Maria
,
Louloudi Eleftheria
,
Manousi Natalia
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2024)
.
Salicylic acid as a switchable hydrophilicity solvent for the microextraction of the antibiotic amphotericin B from human urine followed by HPLC-UV analysis
.
Microchemical Journal
.
vol.199 p.Article number: 110025
Terzi Maria
,
Manousi Natalia
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2024)
.
Utilization of a pH-switchable hydrophilicity solvent for the microextraction of clomipramine from human urine samples
.
Journal of Chromatography B: Analytical Technologies in the Biomedical & Life Sciences
.
vol.1235 p.Article number: 124060
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2024)
.
High performance liquid chromatography coupled with post – Column derivatization methods in food analysis: Chemistries and applications in the last two decades
.
Food Chemistry
.
vol.443 p.Article number: 138577
(2023)
Journal Article
Baltzis Dimitrios
,
Tsiasioti Apostolia
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2023)
.
Speciation of Iron Using Desferal via Simple pH Change and a Single Calibration Curve: High-Throughput Optical Sensor Based on 96-Well Plates and an Overhead Book Scanner as Detector
.
Chemosensors
.
vol.11 no.12 p.Article number: 577
Baltzis Dimitrios
,
Tsogkas Georgios
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2023)
.
Smartphone-Based High-Throughput Fluorimetric Assay for Histidine Quantification in Human Urine Using 96-Well Plates
.
Molecules
.
vol.28 no.17 p.Article number: 6205
Korpeti Anastasia
,
Manousi Natalia
,
Kabir Abuzar
,
Furton Kenneth G.
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2023)
.
Investigating the applicability of polar fabric phase sorptive extraction for the HPLC quantitation of salivary vitamin B12 following administration of sublingual tablets and oral sprays
.
Talanta
.
vol.258 p.124482 (8 pages)
Manousi Natalia
,
Ntorkou Marianna
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2023)
.
A Review of Bioanalytical Applications of Microextraction Techniques Combined with Derivatization
.
Bioanalysis
.
vol.15 no.15 p.937-954
Ntontis Stefanos
,
Tsanaktsidou Eleni
,
Tzanavaras Paraskevas
,
Kachrimanis Kyriakos
,
Markopoulou Aikaterini
,
Zacharis Konstantinos
.
(2023)
.
Analytical quality by design approach for the determination of imidazole in sildenafil API and its formulations using zwitterionic HILIC stationary phase
.
Journal of Pharmaceutical and Biomedical Analysis
.
vol.224 p.Article number: 115186
Pavlidis Alexandros
,
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2023)
.
Extraction and determination of free glutathione and its disulfide in various flour samples using liquid chromatography and on-line post column derivatization
.
Microchemical Journal
.
vol.193 p.Article number: 109145
Tarara Maria
,
Tzanavaras Paraskevas
,
Tsogkas Georgios
.
(2023)
.
Development of a Paper-Based Analytical Method for the Colorimetric Determination of Calcium in Saliva Samples
.
Sensors
.
vol.23 no.1 p.Article number: 198
Tsaftari Vasiliki C.
,
Tarara Maria
,
Tzanavaras Paraskevas
,
Tsogkas Georgios
.
(2023)
.
A Novel Equipment-Free Paper-Based Fluorometric Method for the Analytical Determination of Quinine in Soft Drink Samples
.
Sensors
.
vol.23 no.11 p.Article number: 5153
Tsiasioti Apostolia
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2023)
.
Derivatization strategies for the determination of histamine in food samples: A review of recent separation-based methods
.
Trends in Analytical Chemistry: TRAC
.
vol.168 p.Article number: 117302
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2023)
.
Naphthalene-2,3-dicarboxaldehyde as a pulsed-post column derivatization reagent; comparison with two alternative o-phthalaldehyde based chemistries for the determination of histamine
.
Food Chemistry
.
vol.424 p.Article number: 136462
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2023)
.
Developments in on-line, post separation sample manipulation in the last 22 years: Pharmaceutical and biomedical applications
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.235 p.Article number: 115654
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2023)
.
Determination of glutathione and glutathione disulfide using liquid chromatography: A review on recent applications
.
Microchemical Journal
.
vol.193 p.Article number: 109157
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2023)
.
Pulsed-post column derivatization coupled to green liquid chromatography for the determination of glutathione and cysteine based on thioacrylates formation
.
Talanta
.
vol.259 p.Article number: 124488
Tsiasioti Apostolia
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2023)
.
Development and evaluation of pulsed – Post column derivatization in liquid chromatography as a concept to minimize reagent consumption
.
Journal of Chromatography A
.
vol.1690 p.Article number: 463791
Tsiasioti Apostolia
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2023)
.
Determination of Free Histidine in Complex Hair Care Products with Minimum Sample Preparation Using Cation-Exchange Chromatography and Post Column Derivatization
.
Molecules
.
vol.28 no.2 p.Article number: 888
(2022)
Journal Article
Bizirtsakis Panagiotis A.
,
Tarara Maria
,
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
,
Tsogkas Georgios
.
(2022)
.
Development of a Paper-Based Analytical Method for the Selective Colorimetric Determination of Bismuth in Water Samples
.
Chemosensors
.
vol.10 no.7 p.Article Number: 265 (11 pages)
Doumtsi Antigoni
,
Manousi Natalia
,
Karavasili Christina
,
Fatouros Dimitrios
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2022)
.
A simple and green liquid chromatography method for the determination of ibuprofen in milk-containing simulated gastrointestinal media for monitoring the dissolution studies of three-dimensional-printed formulations
.
Journal of Separation Science
.
vol.45 no.21 p.3955-3965
Gkantiri Anna-Maria
,
Tsiasioti Apostolia
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2022)
.
HPLC method with post-column derivatization for the analysis of endogenous histidine in human saliva validated using the total-error concept
.
Amino Acids
.
vol.54 no.3 p.399–409
Lili Chrystalla
,
Manousi Natalia
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2022)
.
Green homogeneous liquid-liquid microextraction at high salinity conditions for the determination of nimesulide in human urine with the aid of experimental design
.
Sustainable Chemistry and Pharmacy
.
vol.29 p.Article number: 100797 (12 pages)
Manousi Natalia
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2022)
.
Determination of bisphosphonate active pharmaceutical ingredients in pharmaceuticals and biological materials: An updated review
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.219 p.Article number: 114921 (15 pages)
Manousi Natalia
,
Karavasili Christina
,
Fatouros Dimitrios
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2022)
.
Development and Validation of an HPLC-UV Method for the Dissolution Studies of 3D-Printed Paracetamol Formulations in Milk-Containing Simulated Gastrointestinal Media
.
Pharmaceuticals
.
vol.15 no.6 p.Article number: 755 (15 pages)
Manousi Natalia
,
Kabir Abuzar
,
Furton Kenneth G.
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2022)
.
In situ synthesis of monolithic sol–gel polyethylene glycol-based sorbent encapsulated in porous polypropylene microextraction capsules and its application for selective extraction of antifungal and anthelmintic drugs from human urine
.
Microchemical Journal
.
vol.180 p.Article number: 107594 (11 pages)
Papavasileiou Kalliopi
,
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2022)
.
HPLC Determination of Colistin in Human Urine Using Alkaline Mobile Phase Combined with Post-Column Derivatization: Validation Using Accuracy Profiles
.
Molecules
.
vol.27 no.11 p.Article number: 3489 (14 pages)
Sidiropoulou Georgia
,
Kabir Abuzar
,
Furton Kenneth G.
,
Kika Fotini S.
,
Fytianos Konstantinos
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2022)
.
Combination of fabric phase sorptive extraction with UHPLC-ESI-MS/MS for the determination of adamantine analogues in human urine
.
Microchemical Journal
.
vol.176 p.Article number: 107250 (11 pages)
Tarara Maria
,
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
,
Tsogkas Georgios
.
(2022)
.
Development of an equipment free paper based fluorimetric method for the selective determination of histidine in human urine samples
.
Talanta
.
vol.249 p.Article number: 123685 (7 pages)
Tsanaktsidou Eleni
,
Markopoulou Aikaterini
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2022)
.
Homogeneous liquid phase microextraction using hydrophilic media for the determination of fluoroquinolones in human urine using HPLC-FLD
.
Microchemical Journal
.
vol.172 no.part A p.Article number: 106906 (10 pages)
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2022)
.
Simple and Reliable Determination of the Histamine Content of Selected Greek Vegetables and Related Products in the Frame of “Low Histamine Diet”
.
Foods
.
vol.11 no.20 p.Article number: 3234 (8 pages)
Tsiasioti Apostolia
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2022)
.
Single-Step Hydrolysis and Derivatization of Homocysteine Thiolactone Using Zone Fluidics: Simultaneous Analysis of Mixtures with Homocysteine Following Separation by Fluorosurfactant-Modified Gold Nanoparticles
.
Molecules
.
vol.27 no.7 p.Article number: 2040 (9 pages)
Tsiasioti Apostolia
,
Georgiadou Eirini
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2022)
.
Development and validation of a direct HPLC method for the determination of salivary glutathione disulphide using a core shell column and post column derivatization with o-phthalaldehyde
.
Journal of Chromatography B: Analytical Technologies in the Biomedical & Life Sciences
.
vol.1197 p.Article number: 123216 (6 pages)
Tzanavaras Paraskevas
,
Chatzitaki Aikaterini-Theodora
,
Karavasili Christina
,
Sarigiannis Yiannis
,
Fatouros Dimitrios
,
Zacharis Konstantinos
.
(2022)
.
Analytical quality-by-design optimization of UHPLC method for the analysis of octreotide release from a peptide-based hydrogel in-vitro
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.214 p.Article number: 114699 (12 pages)
(2021)
Journal Article
Karakosta Theano D.
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2021)
.
Development and Validation of an Automated Zone Fluidics-Based Sensor for In Vitro Dissolution Studies of Captopril Using Total Error Concept
.
Molecules
.
vol.26 no.4 p.Article number: 824 (13 pages)
Kouti Eirini
,
Tsiasioti Apostolia
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2021)
.
Specific determination of histamine in cheese and cured meat products by ion chromatography coupled to fluorimetric detection
.
Microchemical Journal
.
vol.168 p.Article number: 106513 (8 pages)
Stampina Eirini
,
Tsiasioti Apostolia
,
Klimatsaki Kalliopi
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2021)
.
Determination of histidine in human serum and urine by cation exchange chromatography coupled to selective on-line post column derivatization
.
Journal of Chromatography B: Analytical Technologies in the Biomedical & Life Sciences
.
vol.1173 p.Article number: 122697 (6 pages)
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2021)
.
Automated fluorimetric sensor for hydrazine determination in water samples based on the concept of zone fluidics
.
Environmental Science & Pollution Research
.
vol.28 no.42 p.59083–59090
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2021)
.
Selective post-column derivatization coupled to cation exchange chromatography for the determination of histamine and its precursor histidine in fish and Oriental sauce samples
.
Food Chemistry
.
vol.351 p.Article number: 129351 (7 pages)
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
.
(2021)
.
Determination of glutathione and glutathione disulfide using zone fluidics and fluorimetric detection
.
Talanta
.
vol.222 p.Article number: 121559 (6 pages)
Tsiasioti Apostolia
,
Zotou Anastasia-Stella
,
Tzanavaras Paraskevas
.
(2021)
.
Single run analysis of glutathione and its disulfide in food samples by liquid chromatography coupled to on-line post-column derivatization
.
Food Chemistry
.
vol.361 no.C p.Article number: 130173 (7 pages)
(2020)
Journal Article
Alevridis Antonios
,
Tsiasioti Apostolia
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2020)
.
Fluorimetric Method for the Determination of Histidine in Random Human Urine Based on Zone Fluidics
.
Molecules
.
vol.25 no.7 p.Article number: 1665 (11 pages)
Christofi Marlen
,
Markopoulou Aikaterini
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2020)
.
UHPLC-fluorescence method for the determination of trace levels of hydrazine in allopurinol and its formulations: Validation using total-error concept
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.187 p.Article number: 113354 (8 pages)
Karakosta Theano D.
,
Christophoridis Christophoros
,
Fytianos Konstantinos
,
Tzanavaras Paraskevas
.
(2020)
.
Micelles Mediated Zone Fluidics Method for Hydrazine Determination in Environmental Samples
.
Molecules
.
vol.25 no.1 p.Article number: 174 (11 pages)
Manousi Natalia
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2020)
.
Bioanalytical HPLC Applications of In-Tube Solid Phase Microextraction: A Two-Decade Overview
.
Molecules
.
vol.25 no.9 p.Article number: 2096 (32 pages)
Stratigou Ioanna-Chrysoula
,
Tsiasioti Apostolia
,
Tzanavaras Paraskevas
,
Markopoulou Aikaterini
,
Fytianos Konstantinos
,
Zacharis Konstantinos
.
(2020)
.
Homogeneous liquid liquid extraction using salt as mass separating agent for the ultra high pressure liquid chromatographic determination of doxorubicin in human urine
.
Microchemical Journal
.
vol.158 p.Article number: 105260 (10 pages)
Tsiasioti Apostolia
,
Andreou Aikaterini
,
Tzanavaras Paraskevas
.
(2020)
.
Selective reaction of homocysteine with o-phthalaldehyde under flow conditions in highly alkaline medium: fluorimetric determination using zone fluidics
.
Luminescence
.
vol.35 no.8 p.1402-1407
Tsiasioti Apostolia
,
Iakovidou Ifigenia
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2020)
.
Automated fluorimetric sensor for glutathione based on zone fluidics
.
Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy
.
vol.229 p.Article number: 117963 (6 pages)
Tsiasioti Apostolia
,
Zacharis Konstantinos
,
Zotou Anastasia-Stella
,
Tzanavaras Paraskevas
.
(2020)
.
Study of the oxidative forced degradation of Glutathione in its nutraceutical formulations using Zone Fluidics and Green Liquid Chromatography
.
Separations
.
vol.7 no.1 p.Article number: 16 (12 pages)
Tzanavaras Paraskevas
,
Themistokleous Stefanos
,
Zacharis Konstantinos
.
(2020)
.
Automated fluorimetric determination of the genotoxic impurity hydrazine in allopurinol pharmaceuticals using zone fluidics and on-line solid phase extraction
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.177 p.Article number: 112887 (8 pages)
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2020)
.
Trace analysis of rimantadine in human urine after dispersive liquid liquid microextraction followed by liquid chromatography–post column derivatization
.
Journal of Separation Science
.
vol.43 no.3 p.631-638
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2020)
.
Editorial: Solid-Phase Microextraction
.
Molecules
.
vol.25 no.2 p.Article number: 379 (4 pages)
(2019)
Journal Article
Tzanavaras Paraskevas
,
Papadimitriou Sofia
,
Zacharis Konstantinos
.
(2019)
.
Automated Stopped-Flow Fluorimetric Sensor for Biologically Active Adamantane Derivatives Based on Zone Fluidics
.
Molecules
.
vol.24 no.21 p.Article number: 3975 (10 pages)
(2016)
Journal Article
Samara A.
,
Zotou Anastasia-Stella
,
Tzanavaras Paraskevas
.
(2016)
.
Use of a Core-Shell Column for the Development of a Green LC Method for Thiol Determination in Fresh Fruits Following Derivatization with Methyl Propiolate
.
Food Analytical Methods
.
Vol.9 no.3 p. 680–690
(2014)
Journal Article
Memon Najma
,
Tzanavaras Paraskevas
.
(2014)
.
Utilization of Organized Surfactant Assemblies as Solvents in Flow Injection Analysis with emphasis to Automated Derivatization of Organic Analytes
.
Current Analytical Chemistry
.
vol.10 no.3 p.338-348
Notou Maria
,
Zotou Anastasia-Stella
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2014)
.
Automated derivatization and fluorimetric determination of biogenic amines in milk by zone fluidics coupled to liquid chromatography
.
Journal of Chromatography A
.
vol. 1356 p. 272–276
Tzanavaras Paraskevas
.
(2014)
.
Editorial (Thematic Issue: Special Issue on Analytical Derivatization)
.
Current Analytical Chemistry
.
vol.10 no.3 p.297-297
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2014)
.
Automated Fluorimetric Assay for Baclofen After On-line Derivatization with o-phthalaldehyde Based on the Sequential Injection Principle
.
Current Analytical Chemistry
.
vol.10 no.3 p.298-304
Tzanavaras Paraskevas
,
Aristeridou Magda
,
Bald Edward
,
Glowacki Rafal
.
(2014)
.
Zone Fluidics Derivatization of Thiols Under Flow Conditions by 2-Chloro-1-methylquinolinium Tetrafluoroborate
.
Analytical Letters
.
vol.47 no.2 p.331-342
(2013)
Journal Article
Karakosta Theano D.
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2013)
.
Determination of glutathione and cysteine in yeasts by hydrophilic interaction liquid chromatography followed by on‐line postcolumn derivatization
.
Journal of Separation Science
.
vol.36 no.12 p.1877-1882
Tsardaka E.-C.
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Zotou Anastasia-Stella
.
(2013)
.
Determination of glutathione in baker's yeast by capillary electrophoresis using methyl propiolate as derivatizing reagent
.
Journal of Chromatography A
.
vol.1300 p. 204–208
Tzanavaras Paraskevas
.
(2013)
.
Editorial : Special Issue on Automated Flow Injection Techniques
.
Analytical Letters
.
vol.46 no.11 p.1619-1620
Tzanavaras Paraskevas
,
Deda Olga
,
Karakosta Theano D.
,
Themelis Dimitrios
.
(2013)
.
Selective fluorimetric method for the determination of histamine in seafood samples based on the concept of zone fluidics
.
Analytica Chimica Acta
.
vol.778 p.48-53
Tzanavaras Paraskevas
,
Zacharis C.K.
,
Karakosta T.D.
,
Zotou Anastasia-Stella
,
Themelis Dimitrios
.
(2013)
.
High-Throughput Determination of Quinine in Beverages and Soft Drinks Based on Zone-Fluidics Coupled to Monolithic Liquid Chromatography
.
Analytical Letters
.
vol. 46 no. 11 p. 1718-1731
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2013)
.
Liquid chromatography coupled to on-line post column derivatization for the determination of organic compounds: A review on instrumentation and chemistries
.
Analytica Chimica Acta
.
vol.798 p.1-24
Zacharis Konstantinos
,
Kika Fotini S.
,
Tzanavaras Paraskevas
,
Fytianos Konstantinos
.
(2013)
.
Development and validation of a rapid ultra high pressure liquid chromatographic method for the determination of methylxanthines in herbal infusions
.
Journal of Chromatography B: Analytical Technologies in the Biomedical & Life Sciences
.
vol.927 p.218-222
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2013)
.
Preface : Trends and applications of fast liquid chromatography in bioanalysis
.
Journal of Chromatography B: Analytical Technologies in the Biomedical & Life Sciences
.
vol.927 p.1-2
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Vlessidis Athanasios G.
.
(2013)
.
Determination of rimantadine in human urine by HPLC using a monolithic stationary phase and on-line post-column derivatization
.
Journal of Separation Science
.
vol.36 no.11 p.1720-1725
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Karakosta Theano D.
,
Themelis Dimitrios
.
(2013)
.
Zwitterionic hydrophilic interaction chromatography coupled with post-column derivatization for the analysis of glutathione in wine samples
.
Analytica Chimica Acta
.
vol.795 p.75-81
(2012)
Journal Article
Anthemidis Aristeidis
,
Mitani Constantina
,
Balkatzopoulou Paschalia
,
Tzanavaras Paraskevas
.
(2012)
.
On-line micro-volume introduction system developed for lower density than water extraction solvent and dispersive liquid–liquid microextraction coupled with flame atomic absorption spectrometry
.
Analytica Chimica Acta
.
vol.733 p.34-37
Karakosta Theano D.
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2012)
.
Automated determination of total captopril in urine by liquid chromatography with post-column derivatization coupled to on-line solid phase extraction in a sequential injection manifold
.
Talanta
.
vol.88 p.561-566
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2012)
.
Editors’ preface for the special issue “Recent advances in separation science”
.
Central European Journal of Chemistry
.
vol.10 no.3 p.415-416
Tzanavaras Paraskevas
,
Boulimari Euridiki
.
(2012)
.
Automated Determination of Hydrogen Peroxide at the Micro-Molar Level in Rainwater and Snow Using a Stopped-Flow Approach in a Hybrid Sequential Injection/Flow Injection Manifold
.
Analytical Letters
.
vol.45 no.9 p.1086-1097
Tzanavaras Paraskevas
.
(2012)
.
A green HPLC method for the determination of N-acetylcysteine using post-column derivatization with methyl-propiolate
.
Instrumentation Science & Technology
.
vol.40 no.2-3 p.150-160
Tzanavaras Paraskevas
,
Mitani Constantina
,
Anthemidis Aristeidis
,
Themelis Dimitrios
.
(2012)
.
On-line cleavage of disulfide bonds by soluble and immobilized tris-(2-carboxyethyl)phosphine using sequential injection analysis
.
Talanta
.
vol.96 p.21-25
Tzanavaras Paraskevas
,
Karakosta Theano
,
Rigas Pantelis
,
Themelis Dimitrios
,
Zotou Anastasia-Stella
.
(2012)
.
Isocratic liquid chromatographic determination of three paraben preservatives in hygiene wipes using a reversed phase core-shell narrow-bore column
.
Central European Journal of Chemistry (Open Chemistry)
.
vol. 10 no. 5 p. 1459–1463
Zacharis Konstantinos
,
Karakosta Theano D.
,
Tzanavaras Paraskevas
,
Rigas Pantelis G.
,
Themelis Dimitrios
.
(2012)
.
Chromatographic behavior of the biologically active proline derivativecaptopril on particulate, monolithic and core–shell narrow bore columns
.
Analytical Methods
.
vol.4 no.12 p.4373-4377
Book Chapter
Tzanavaras Paraskevas
.
(2012)
.
Automated quality control of pharmaceuticals by sequential injection analysis coupled to spectrophotometric detection (Chapter 5)
.
Quality control : developments, methods and applications
.
Επιμέλεια:José A. Orosa
.
New York
.
Nova Publishers
.
p.101-112
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2012)
.
Preservatives
.
Food Analysis by HPLC
.
Επιμέλεια:Leo M.L. Nollet, Fidel Toldra
.
Boca Raton, Fl
.
CRC Press
.
p.529-550
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2012)
.
Generic Preconcentration/Dilution Sequential Injection Manifold for the Automated Amperometric Determination of Free Cyanides from Sub-ppb to High ppm Levels (Chapter 15.)
.
Portable Chemical Sensors : weapons against bioterrorism
.
Επιμέλεια:Dimitrios Nikolelis
.
Dordrecht, The Netherlands
.
Springer
.
p.279-286
(2011)
Journal Article
Karakosta T. D.
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2011)
.
Automated pre-column derivatization of thiolic fruit-antibrowning agents by sequential injection coupled to high performance liquid chromatography using a monolithic stationary phase and an in-loop stopped-flow approach
.
Journal of Separation Science
.
vol.34 no.16-17 p.2240-2246
Karakosta T. D.
,
Tzanavaras Paraskevas
.
(2011)
.
Automated derivatization of pharmaceutically active thiols under flow conditions using an o-phthalaldehyde / glycine fluorogenic system and sequential injection analysis
.
Analytical Letters
.
vol.44 no.15 p.2530-2542
Tzanavaras Paraskevas
.
(2011)
.
Guest editorial
.
Analytical Letters
.
vol.44 no.1-3 p.1-3
Tzanavaras Paraskevas
,
Karakosta T. D.
.
(2011)
.
Automated tagging of pharmaceutically active thiols under flow conditions using monobromobimane
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.54 no.4 p.882-885
Tzanavaras Paraskevas
.
(2011)
.
Development and validation of an ultra-fast liquid chromatographic method for the quality control of famotidine formulations using a short monolithic stationary phase
.
Central European Journal of Chemistry
.
vol.9 no.3 p.446–452
Tzanavaras Paraskevas
.
(2011)
.
Automated determination of Captopril by flow and sequential injection analysis:a review
.
Analytical Letters
.
vol.44 no.1-3 p.560-576
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Zotou Anastasia-Stella
.
(2011)
.
Ethyl propiolate as a post-column derivatization reagent for thiols: development of a green liquid chromatographic method for the determination of glutathione in vegetables
.
Analytica Chimica Acta
.
Vol.690 no.1 p.122-128
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Mouroutis P. N.
,
Rigas Pantelis
.
(2011)
.
NBD-Cl as a Post-Column Reagent for Primary and Secondary Amines after Separation by Ion-Exchange Chromatography
.
Analalytical Letters
.
vol.44 no.10 p.1821-1834
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2011)
.
HPLC separation of nimesulide and five impurities using a narrow-bore monolithic column: application to photo-degradation studies
.
Chromatographia
.
vol.73 no.3-4 p. 347–352
Zacharis Konstantinos
,
Kika F. S.
,
Tzanavaras Paraskevas
,
Rigas P.
,
Kyranas E. R.
.
(2011)
.
Development and validation of a rapid HPLC method for the determination of five banned fat-soluble colorants in spices using a narrow-bore monolithic column
.
Talanta
.
vol.84 no.2 p.480-486
(2010)
Journal Article
Themelis Dimitrios
,
Tzanavaras Paraskevas
,
Boulimari E. A.
.
(2010)
.
Generic automated fluorimetric assay for the quality control of gamma aminobutyric acid-analogue antiepileptic drugs using sequential injection
.
Analytical Letters
.
vol.43 no.6 p.905-918
Tzanavaras Paraskevas
,
Zacharis Konstantinos
,
Themelis Dimitrios
.
(2010)
.
Rapid determination of methylxanthines in real samples by high performance liquid chromatography using the new FastGradient® narrow bore monolithic column
.
Talanta
.
vol.81 no.4-5 p.1494-1501
Tzanavaras Paraskevas
,
Zacharis Konstantinos
,
Themelis Dimitrios
.
(2010)
.
On-line derivatization of N-acetylcysteine using ethyl-propiolate as a novel advantageous reagent and sequential injection analysis
.
Analytical Letters
.
vol.43 no.12 p.1889-1901
Tzanavaras Paraskevas
,
Tsiomlektsis A.
,
Zacharis C. K.
.
(2010)
.
Derivatization of thiols under flow conditions using two commercially available propiolate esters
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.53 no.3 p.790-794
Tzanavaras Paraskevas
.
(2010)
.
Recent Advances in the Analysis of Organic Impurities of Active Pharmaceutical Ingredients and Formulations: A Review
.
Current Organic Chemistry
.
vol.14 no.9 p.2348-2364
Tzanavaras Paraskevas
.
(2010)
.
Automated determination of pharmaceutically and biologically active thiols by sequential injection analysis: a review
.
The Open Chemical and Biomedical Methods Journal
.
vol.3 p.37-45
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Roubos C.
,
Dima K.
.
(2010)
.
Solvent-based de-emulsification dispersive liquid-liquid microextraction combined with gas chromatography – mass spectrometry for determination of trace organochlorine pesticides in environmental water samples
.
Journal of Chromatography A
.
vol.1217 no.38 p.5896-5900
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2010)
.
High throughput automated determination of glutathione based on the formation of a UV-absorbing thioacrylate derivative
.
Combinatorial Chemistry & High Throughput Screening
.
vol.13 no.6 p.461-468
Zotou Anastasia-Stella
,
Sakla I.
,
Tzanavaras Paraskevas
.
(2010)
.
LC-determination of five paraben preservatives in saliva and toothpaste samples using UV detection and a short monolithic column
.
Journal of Pharmaceutical and Biomedical Analysis
.
vol. 55 no. 3 p. 785-789
Book Chapter
Themelis Dimitrios
,
Tzanavaras Paraskevas
.
(2010)
.
Determination of cadmium by flow injection analysis: A review of recent applications
.
Cadmium in the environment
.
Επιμέλεια:Reini G. Parvau
.
New York
.
Nova Science Publishers
.
p.429-445
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2010)
.
Preface
.
Reviews in Pharmaceutical and Biomedical Analysis
.
Επιμέλεια:Constantinos K. Zacharis and Paraskevas D. Tzanavaras
.
Bentham eBookss
.
p.ii-ii
Book - Textbook
Zacharis Konstantinos (editor)
,
Tzanavaras Paraskevas (editor)
.
(2010)
.
Reviews in Pharmaceutical and Biomedical Analysis
.
Bentham eBooks
(2009)
Journal Article
Themelis Dimitrios
,
Karastogianni S.
,
Tzanavaras Paraskevas
.
(2009)
.
Selective determination of cyanides by gas diffusion-stopped flow-sequential injection analysis and on-line standard addition approach
.
Analytica Chimica Acta
.
vol.632 no.1 p.93-100
Tzanavaras Paraskevas
.
(2009)
.
Editorial : Monolithic Stationary Phases in Liquid Phase Separations
.
Journal of Chromatographic Science
.
vol.47 no.6 p.406-406
Tzanavaras Paraskevas
,
Thiakouli E.
,
Themelis Dimitrios
.
(2009)
.
Hybrid sequential injection-flow injection manifold for the spectrophotometric determi-nation of total sulfite in wines using o-phthalaldehyde and gas-diffusion
.
Talanta
.
vol.77 no. 5 p.1614-1619
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Rigas P.
.
(2009)
.
Automated zone-sampling dilution by coupling sequential injection analysis to high-through-put HPLC for the direct determination of gemfibrozil
.
Journal of Separation Science
.
vol.32 no.15-16 p.2819-2826
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Notou Maria
,
Zotou Anastasia-Stella
,
Themelis Dimitrios
.
(2009)
.
Separation and determination of nimesulide related substances for quality control purposes by micellar electrokinetic chromatography
.
Journal of Pharmaceutical and Biomedical Analysis
.
vol. 49 no. 2 p. 201-206
Zacharis Konstantinos
,
Verdoukas A.
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2009)
.
Automated sample preparation coupled to sequential injection chromatography: on-line filtration and dilution protocols prior to separation
.
Journal of Pharmaceutical and Biomedical Analysis
.
vol.49 no.3 p.726-732
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Voulgaropoulos Anastasios
,
Karlberg B.
.
(2009)
.
Amperometric determination of cyanides at the low ppb level by automated preconcentration based on gas diffusion coupled to sequential injection analysis
.
Talanta
.
vol.77 no. 5 p.1620-1626
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2009)
.
Ethyl-propiolate as a novel and promising analytical reagent for the derivatization of thiols: Study of the reaction under flow conditions
.
Journal of Pharmaceutical and Biomedical Analysis
.
vol.50 no.3 p.384-391
Book Chapter
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Stratis Ioannis
.
(2009)
.
Sulphur dioxide in wines: Automated determination using flow injection analysis
.
Red wine and health
.
Επιμέλεια:O'Byrne, Paul
.
New York
.
Nova Science Publishers
.
p.303-322
(2008)
Journal Article
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Zotou Anastasia-Stella
,
Stratis Ioannis
,
Karlberg Bo
.
(2008)
.
Optimization and validation of a dissolution test for selegiline hydrochloride tablets by a novel rapid HPLC assay using a monolithic stationary phase
.
Journal of Pharmaceutical and Biomedical Analysis
.
vol.46 no.4 p.670-675
Tzanavaras Paraskevas
,
Zacharis Konstantinos
,
Rigas Pantelis
.
(2008)
.
Novel automated assay for the quality control of mexiletine hydrochloride formulations using sequential injection and on-line dilution
.
Journal of Pharmaceutical and Biomedical Analysis
.
vol.48 p.1254
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
(2008)
.
Extraction of acyclovir from pharmaceutical creams prior to HPLC assay analysis: Optimization and validation of pretreatment protocols
.
Central European Journal of Chemistry
.
vol.6 no. 2 p.140-144
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
(2008)
.
Determination of bisphosphonate active pharmaceutical ingredients in pharmaceuticals and biological material: A review of analytical methods
.
Journal of Pharmaceutical and Biomedical Analysis
.
vol.48 no. 3 p.483-496
(2007)
Journal Article
Economou Anastasios
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2007)
.
Sequential-Injection Analysis: A Useful Tool for Clinical and Biochemical Analysis
.
Current Pharmaceutical Analysis
.
vol.3 no.4 p.249-261
Themelis Dimitrios
,
Trellopoulos Anastasios V.
,
Tzanavaras Paraskevas
,
Sofoniou Michail
.
(2007)
.
Highly selective flow injection spectrophotometric determination of gold based on its catalytic effect on the oxidation of variamine blue by potassium iodate in aqueous N,N-dimethylformamide medium
.
Talanta
.
vol.72 no.1 p.277-281
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2007)
.
Automated determination of flutamide by a validated flow-injection method: Application to dissolution studies of pharmaceutical tablets
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.43 no.5 p.1820-1824
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2007)
.
Review of recent applications of flow injection spectrophotometry to pharmaceutical analysis
.
Analytica Chimica Acta
.
vol.588 no.1 p.1-9
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Kika Fotini
.
(2007)
.
Review of analytical methods for the determination of chlorine dioxide
.
Central European Journal of Chemistry
.
vol.5 no.1 p.1-12
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2007)
.
High-throughput HPLC assay of acyclovir and its major impurity guanine using a monolithic column and a flow gradient approach
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.43 no.4 p.1526-1530
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2007)
.
Validated high-throughput HPLC assay for nimesulide using a short monolithic column
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.43 no.4 p.1483-1487
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2007)
.
Development and validation of a high-throughput high-performance liquid chromatographic assay for the determination of caffeine in food samples using a monolithic column
.
Analytica Chimica Acta
.
vol.581 no.1 p.89-94
(2006)
Journal Article
Tzanavaras Paraskevas
,
Verdoukas Aspasia
,
Balloma Theodora
.
(2006)
.
Optimization and validation of a dissolution test for famotidine tablets using flow injection analysis
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.41 no.2 p.437-441
(2005)
Journal Article
Economou A.
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2005)
.
Sequential-Injection Analysis: Principles, Instrument Construction, and Demonstration by a Simple Experiment
.
Journal of Chemical Education
.
vol.82 no.12 p.1820-1822
Themelis Dimitrios
,
Trellopoulos Anastasios V.
,
Tzanavaras Paraskevas
,
Karlberg Bo
.
(2005)
.
Assay of the synthetic estrogen fosfestrol in pharmaceutical formulations using capillary electrophoresis
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.39 no.3-4 p.559-563
Tzanavaras Paraskevas
,
Zacharis Konstantinos
,
Theodoridis Georgios
,
Kalaitzantonakis Eftichios A.
,
Voulgaropoulos Anastasios
.
(2005)
.
Normal spectrophotometric and stopped-flow spectrofluorimetric sequential injection methods for the determination of alendronic acid, an anti-osteoporosis amino-bisphosphonate drug, in pharmaceuticals
.
Analytica Chimica Acta
.
vol.547 no.1 p.98-103
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2005)
.
Validated Flow Injection Spectrophotometric Assay for the Quality and Stability Control of Gemfibrozil Tablets
.
Analytical Letters
.
vol.38 no.13 p.2165-2173
Tzanavaras Paraskevas
,
Verdoukas A.
,
Themelis Dimitrios
.
(2005)
.
Development and Validation of a Flow-Injection Assay for Dissolution Studies of the Anti-depressant Drug Venlafaxine
.
Analytical Sciences
.
vol.21 no.12 p.1515-1518
(2004)
Journal Article
Economou Anastasios
,
Themelis Dimitrios
,
Bikou Helen
,
Tzanavaras Paraskevas
,
Rigas Pantelis G.
.
(2004)
.
Determination of boron in water and pharmaceuticals by sequential-injection analysis and fluorimetric detection
.
Analytica Chimica Acta
.
vol.510 no.2 p.219-224
Economou Anastasios
,
Tzanavaras Paraskevas
,
Notou Maria
,
Themelis Dimitrios
.
(2004)
.
Determination of methimazole and carbimazole by flow-injection with chemiluminescence detection based on the inhibition of the Cu(II)-catalysed luminol–hydrogen peroxide reaction
.
Analytica Chimica Acta
.
vol.505 no.1 p.129-133
Themelis Dimitrios
,
Economou A.
,
Tsiomlektsis A.
,
Tzanavaras Paraskevas
.
(2004)
.
Direct determination of phosphate in urine by sequential-injection analysis with single on-line dilution–calibration method and photometric detection
.
Analytical Biochemistry
.
vol.330 no.2 p.193-198
Theodoridis Georgios
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Economou Anastasios
.
(2004)
.
Automated sample preparation based on the sequential injection principle: Solid-phase extraction on a molecularly imprinted polymer coupled on-line to high-performance liquid chromatography
.
Journal of Chromatography A
.
vol.1030 no.1-2 p.69-76
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Economou Anastasios
.
(2004)
.
Sequential injection method for the direct spectrophotometric determination of bismuth in pharmaceutical products
.
Analytica Chimica Acta
.
vol.505 no.1 p.167-171
Zacharis Konstantinos
,
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Theodoridis Georgios
,
Economou Anastasios
,
Rigas Pantekis G.
.
(2004)
.
Rapid spectrofluorimetric determination of lisinopril in pharmaceutical tablets using sequential injection analysis
.
Analytical & Bioanalytical Chemistry
.
vol.379 p.759-763
(2003)
Journal Article
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2003)
.
Novel flow injection spectrophotometric determination of fosinopril using UV-assisted digestion and an orthophosphates calibration graph
.
Analytica Chimica Acta
.
vol.481 no.2 p.321-326
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Economou Anastasios
,
Theodoridis Georgios
.
(2003)
.
Flow and Sequential Injection Manifolds for the Spectrophotometric Determination of Captopril Based on its Oxidation by Fe(III)
.
Microchimica Acta
.
vol.142 no.1-2 p.55-62
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2003)
.
Flow injection spectrophotometric determination of fosfestrol, following on-line thermal induced digestion and using an orthophosphate calibration graph
.
Talanta
.
vol.59 no.1 p.207-213
(2002)
Journal Article
Oikonomou Anastasios
,
Themelis Dimitrios
,
Theodoridis Georgios
,
Tzanavaras Paraskevas
.
(2002)
.
Sensitive determination of captopril by flow injection analysis with chemiluminescence detection based on the enhancement of the luminol reaction
.
Analytica Chimica Acta
.
vol.463 no.2 p.249-255
Themelis Dimitrios
,
Tzanavaras Paraskevas
.
(2002)
.
Solvent extraction flow-injection manifold for the simultaneous spectrophotometric determination of free cyanide and thiocyanate ions based upon on-line masking of cyanides by formaldehyde
.
Analytica Chimica Acta
.
vol.452 no.2 p.295-302
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2002)
.
Simultaneous flow-injection determination of fluoride, monofluorophosphate and orthophosphate ions using alkaline phosphatase immobilized on a cellulose nitrate membrane and an open-circulation approach
.
Analytica Chimica Acta
.
vol.467 no.1-2 p.83-89
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Karlberrg Bo
.
(2002)
.
Rapid spectrophotometric determination of fosfestrol following on-line hydrolysis by alkaline phosphatase using flow injection and chasing zones
.
Analytica Chimica Acta
.
vol.462 no.1 p.119-124
Tzanavaras Paraskevas
,
Themelis Dimitrios
,
Economou Anastasios
,
Theodoridis Georgios
.
(2002)
.
Reversed flow-injection manifold for the spectrophotometric determination of captopril based on its inhibitory effect on the Co(II)–2,2′-dipyridyl-2-pyridylhydrazone complex formatio
.
Talanta
.
vol.57 no.3 p.575-581
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2002)
.
Flow Injection Spectrophotometric Determination of the Antibiotic Fosfomycin in Pharmaceutical Products and Urine Samples after On-line Thermal-Induced Digestion
.
Analytical Biochemistry
.
vol.304 no.2 p.244-248
(2001)
Journal Article
Themelis Dimitrios
,
Tzanavaras Paraskevas
,
Trellopoulos Anastasios V.
,
Sofoniou Michail
.
(2001)
.
Direct and Selective Flow-Injection Method for the Simultaneous Spectrophotometric Determination of Calcium and Magnesium in Red and White Wines Using Online Dilution Based on “Zone Sampling”
.
Journal of Agricultural and Food Chemistry
.
vol.49 no.11 p.5152–5155
Themelis Dimitrios
,
Tzanavaras Paraskevas
,
Kika Fotini S.
,
Sofoniou Michail
.
(2001)
.
Flow-injection manifold for the simultaneous spectrophotometric determination of Fe(II) and Fe(III) using 2,2′-dipyridyl-2-pyridylhydrazone and a single-line double injection approach
.
Fresenius' Journal of Analytical Chemistry
.
vol.371 no.3 p.364–368
Themelis Dimitrios
,
Tzanavaras Paraskevas
,
Kika Fotini S.
.
(2001)
.
On-line dilution flow injection manifold for the selective spectrophotometric determination of ascorbic acid based on the Fe(II)-2,2′-dipyridyl-2-pyridylhydrazone complex formation
.
Talanta
.
vol.55 no.1 p.127-134
Themelis Dimitrios
,
Tzanavaras Paraskevas
,
Tzanavaras Harisis D.
.
(2001)
.
Simple, rapid reagent-injection spectrophotometric determination of fluorides in pharmaceutical formulations
.
Journal of Pharmaceutical & Biomedical Analysis
.
vol.25 no.5-6 p.971-976
Themelis Dimitrios
,
Tzanavaras Paraskevas
.
(2001)
.
Simultaneous spectrophotometric determination of fluoride and monofluorophosphate ions in toothpastes using a reversed flow injection manifold
.
Analytica Chimica Acta
.
vol.429 no.1 p.111-116
Themelis Dimitrios
,
Tzanavaras Paraskevas
.
(2001)
.
Reagent-injection spectrophotometric determination of citric acid in beverages and pharmaceutical formulations based on its inhibitory effect on the iron(III) catalytic oxidation of 2,4-diaminophenol by hydrogen peroxide
.
Analytica Chimica Acta
.
vol.428 no.1 p.23-30
Themelis Dimitrios
,
Tzanavaras Paraskevas
,
Papadimitriou John K.
.
(2001)
.
Flow injection manifold for the direct spectrophotometric determination of bismuth in pharmaceutical products using Methylthymol Blue as a chromogenic reagent
.
Analyst
.
vol.126 no.2 p.247-250
Tzanavaras Paraskevas
,
Themelis Dimitrios
.
(2001)
.
Rapid flow injection spectrophotometric determination of monofluorophosphates in toothpastes after on-line hydrolysis by alkaline phosphatase immobilized on a cellulose nitrate membrane
.
Analyst
.
vol.126 no.9 p.1608-1611
(2000)
Journal Article
Themelis Dimitrios
,
Tzanavaras Paraskevas
,
Liakou Aspasia A.
,
Tzanavaras Harrisis D.
,
Papadimitriou John K.
.
(2000)
.
Normal and differential demasking flow-injection manifold for the direct spectrophotometric determination of zinc(ii) in biological materials and pharmaceutical formulations
.
Analyst
.
vol.125 no.11 p.2106-2111
Themelis Dimitrios
,
Tzanavaras Paraskevas
,
Anthemidis Aristeidis
,
Stratis Ioannis
.
(2000)
.
Erratum to “Direct, selective flow injection spectrophotometric determination of calcium in wines using methylthymol blue and an on-line cascade dilution system” [Anal. Chim. Acta 402 (1999) 259–266]
.
Analytica Chimica Acta
.
vol.410 no.1-2 p.215
(1999)
Journal Article
Themelis Dimitrios
,
Tzanavaras Paraskevas
,
Anthemidis Aristeidis
,
Stratis Ioannis
.
(1999)
.
Direct, selective flow injection spectrophotometric determination of calcium in wines using methylthymol blue and an on-line cascade dilution system
.
Analytica Chimica Acta
.
vol.402 no.1-2 p.259-266
Journal Article
Baltzis Dimitrios
,
Zacharis Konstantinos
,
Tzanavaras Paraskevas
.
High-Throughput Validated Optical Sensor for the Dissolution Studies of Captopril Based on Instrumental: Free Detection through an Overhead Book Scanner
.
Analytical Letters
Manousi Natalia
,
Vlachaki Adamantia
,
Kika Fotini S.
,
Markopoulou Aikaterini
,
Tzanavaras Paraskevas
,
Zacharis Konstantinos
.
Salting‐out homogeneous liquid‐liquid microextraction for the determination of azole drugs in human urine: Validation using total error concept
.
Journal of Separation Science
.
vol.45 no.6 p.1240-1251
Updated: 2026-04-11
