Presentations

more than 220 oral and poster presentations in international and national conferences

[Selected presentations of the last seven years are shown]

Σ219
Nikolaos S. Thomaidis “Measurement uncertainty in qualitative and quantitative wide - scope screening with LC-HRMS”, EURACHEM Workshop in “Uncertainty in Qualitative and Quantitative Analysis", 29-30 May 2017, Nicosia, Cyprus (invited)
Σ218
Marios Kostakis, Nikolaos S. Thomaidis “Qualitative uncertainty (reliability) of chemical identification with High Resolution Mass Spectrometry” EURACHEM Workshop in “Uncertainty in Qualitative and Quantitative Analysis", 29-30 May 2017, Nicosia, Cyprus.
Σ217 Damalas D.E., Agalou M., Beis D., Lamoree M.H., Leonards P.E.G., Thomaidis N. S. “From toxicity assay to metabolomics analysis - An integrated approach to assess the toxicity of three benzotriazoles in zebrafish (Danio rerio) embryos” NORMAN workshop - Integrated Exposure and Effects Assessment, April 11-12, 2017,  Amsterdam, The Netherlands, p.03.
Σ216 Nikolaos S. Thomaidis and Reza Aalizadeh “RTI system for LC-HRMS screening in NORMAN context” 8th General Assembly of Norman, 30 November-1 December, 2016, Vienna, Austria
Σ215 N.A. Alygizakis, S. Samanipour, N.S. Thomaidis, K.V. Thomas: “The Norman Early Warning System (NormaNEWS): A new retrospective analysis exchange platform for laboratories active in non-target screening”, 8th General Assembly of Norman, 30 November-1 December, 2016, Vienna, Austria
Σ214
Diamanti K., Bletsou A.A., Damalas D.E., Thomaidis N.S. “Target screening of emerging contaminants in influent wastewater samples of Athens by LC-QTOF-MS” 22nd Hellenic Chemistry Conference, 2016, Thessaloniki, Greece, p.07. (awarded).
Σ213
Nikolaos S. Thomaidis “Targeted, semi-targeted and non-targeted screening approaches for food analysis” Workshop on “Non-Target Screening embedded in (Open Access) Platforms and its role in various disciplines”, 2-4 November 2016, Munich (invited).
Σ212 Reza Aalizadeh, Natasa P. Kalogiouri and Nikolaos S. Thomaidis “Application of Simulated Annealing Support Vector Machine as a Novel Chemometrics Tool to Support Non-target Screening in Liquid Chromatography High Resolution Mass Spectrometry” 10th Aegean Analytical Chemistry Days (AACD 2016), September 29-October 2, 2016, Çanakkale, Turkey.
Σ211
Kalogiouri N.P., Nikiforos A.A., Aalizadeh R. and Thomaidis N.S., “Development of target, suspect and non-target High Resolution Mass Spectrometry screening strategies coupled with advanced chemometric tools for the evaluation of extra virgin olive oil’s sensory profile”,  10th Aegean Analytical Chemistry Days (AACD 2016), September 29-October 2, 2016, Çanakkale, Turkey.
Σ210 Nikolaos S. Thomaidis “Target and non-target LC-HRMS strategies for the detection of emerging contaminants in the aquatic environment”,  10th Aegean Analytical Chemistry Days (AACD 2016), September 29-October 2, 2016, Çanakkale, Turkey (invited).
Σ209
Nikolaos S. Thomaidis «Integrated target and non-target LC-HRMS strategies to characterize polar contaminants in the aquatic environment» 12th  workshop on LC-MS/MS for environmental analysis and food safety, Barcelona, 5-6 July 2016 (invited)
Σ208
Nikolaos S. Thomaidis “Analytical strategies to explore the polar fraction of environmental samples by non-target LC-HRMS screening” NonTarget2016, 29 May-3 June, 2016, Ascona, Switzerland (invited)
Σ207
Reza Aalizadeh and N. S. Thomaidis “RetTrAMS: SMILES based retention time prediction in RPLC/HILIC- (+/-) ESI - LC-HRMS screening” NonTarget2016, 29 May-3 June, 2016, Ascona, Switzerland
Σ206
P. Gago-Ferrero, N.A. Alygizakis, N.S. Thomaidis, “Prioritization and identification of substances formed during wastewater treatment and released into the aquatic environment”, NonTarget2016, 29 May-3 June, 2016, Ascona, Switzerland
Σ205
N. A. Alygizakis, R. Aalizadeh, P. Gago-Ferrero, A.A. Bletsou, N.S. Thomaidis, “Prioritizing and identifying polar emerging contaminants in wastewater by HILIC-HRMS”, NonTarget2016, 29 May-3 June, 2016, Ascona, Switzerland
Σ204 Thomaidis N.S., Bletsou A.A., Damalas D.E. “Pesticides, their metabolites and transformation products in urban wastewater: a change of perspective using extensive target and suspect LC-HRMS screening” 11th European Pesticide Residue Workshop, May 24-27, 2016, Limassol, Cyprus, PD 096 and Bruker Lunch Seminar, p. (# 65). (invited)
Σ203
Μάριος Γ. Κωστάκης, Νικόλαος Σ. Θωμαΐδης, Μιχαήλ Α. Κουππάρης «ΓΡΑΜΜΙΚΟΤΗΤΑ ΚΑΜΠΥΛΩΝ ΒΑΘΜΟΝΟΜΗΣΗΣ: ΑΝΑΣΚΟΠΗΣΗ ΚΑΙ ΝΕΕΣ ΠΡΟΣΕΓΓΙΣΕΙΣ» 6ο Τακτικό Συνέδριο Μετρολογίας, Αθήνα, 13 - 14 Μαΐου 2016
Σ202
Νικόλαος Θωμαΐδης “ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΚΑΙ ΕΠΙΚΥΡΩΣΗ ΜΕΘΟΔΟΥ ΓΙΑ ΤΟ ΠΡΟΣΔΙΟΡΙΣΜΟ 2327 ΑΝΑΔΥΟΜΕΝΩΝ ΡΥΠΩΝ ΜΕ ΣΤΟΧΕΥΜΕΝΗ ΣΑΡΩΣΗ ΜΕ UPLC-QTοF-HRMS/MS” 6ο Τακτικό Συνέδριο Μετρολογίας, Αθήνα, 13 - 14 Μαΐου 2016 (invited)
Σ201
Marios G. Kostakis, Michalis A. Koupparis, Nikolaos S. Thomaidis “ANOVA: A TOOL FOR BETTER EXPERIMENTAL DESIGN AND EVALUATION OF METHOD VALIDATION” EURACHEM workshop “Validation in Analytical Sciences”, 9-10 May 2016, Ghent (awarded)
Σ200 Νικόλαος Θωμαΐδης «Αξιολόγηση επικινδυνότητας χημικών κινδύνων και συνοπτική
περιγραφή των μοντέλων που χρησιμοποιούνται σε ευρεία κλίμακα» Ημερίδα ΕΦΕΤ «Αξιολόγηση επικινδυνότητας χημικών παραγόντων», 15 Δεκεμβρίου 2015, Αθήνα (invited)
Σ199
M. Kostakis, I. Pasias, R. Aalizadeh, N.A. Alygizakis, N.S. Thomaidis, “Targeted and untargeted LC-MS metabolic profiling for proving the “freshly-frozen” claim in fish”, 7th International Symposium on Recent Advances in Food Analysis, 3-6 November, 2015, Prague, Czech Republic
Σ198
Nikolaos Thomaidis “Targeted determination of new psychoactive substances, drugs of abuse, psychoactive pharmaceuticals and other biomarkers in wastewater by LC-Q-ToF- HRMS” Testing the Waters II, Ascona, Switzerland, 10-15 October 2015. (invited)
Σ197
Koulis A.G., Dasenaki E.M. and Thomaidis N.S. "Determination of hydrolyzed proteins molecular weight in fish feeds using size exclusion chromatography and UV detection" 9th International Conference on Instrumental Methods of Analysis-Modern Trends and Applications, September 20-24, 2015, Kalamata, Greece, p. 132.
Σ196
R. Aalizadeh and N. S. Thomaidis “Wide-scope QSRR models to support suspect and non-target screening of polar compounds in HILIC - ESI(+) - LC-HRMS” 9th International Conference on Instrumental Methods of Analysis. Modern Trends and Applications, September 20-24, 2015, Kalamata, Greece, p.
Σ195
A. A. Bletsou, A. A. Markatis, P. Gago Ferrero, N. S. Thomaidis “Wide-scope screening of polar emerging contaminants in environmental samples by HILIC-QToF-HR-MS/MS” 9th International Conference on Instrumental Methods of Analysis. Modern Trends and Applications, September 20-24, 2015, Kalamata, Greece, p.
Σ194 Kalogiouri N.P. and Thomaidis N.S., “Virgin Olive Oil. Examining authenticity with HR-MS workflows”, 9th International Conference on Instrumental Methods of Analysis. Modern Trends and Applications, September 20-24, 2015, Kalamata, Greece, p. 81
Σ193
Nikolaos Thomaidis “Development and optimization strategy of LC-APPI-MS methods for the determination of halogenated compounds in environmental matrices” 1st NORMAN workshop on analysis of problematic compounds, Sept. 1-2, 2015, Rhodes, Greece.
Σ192
Nikolaos Thomaidis “Basic theory,method development & optimization of HILIC methods” 1st NORMAN workshop on analysis of problematic compounds, Sept. 1-2, 2015, Rhodes, Greece.
Σ191 A.K. Psoma, V.G. Beretsou, E.N. Georgantzi, A.A. Bletsou, Rebekka Gulde, K. Fenner, and N.S. Thomaidis “Orthogonal identification of biotransformation products by HILIC-QTOFMS/MS, 1st NORMAN workshop on analysis of problematic compounds, Sept. 1-2, 2015, Rhodes, Greece.
Σ190
Bletsou, A. A.; Markatis, A. A.; and Thomaidis N.S. “HILIC-QTOF-HR-MS/MS for the orthogonal screening and identification of polar micropollutants in environmental samples” 1 st NORMAN workshop on analysis of problematic compounds, Sep. 1-2, 2015, Rhodes, Greece
Σ189
D.E. Damalas, A.A. Bletsou, A. Agalou, D. Beis, N.S. Thomaidis “Study of the metabolism of zebrafish (danio rerio) embryo exposed to triclosan and benzotriazoles by HILIC-TOF-MS” 1 st NORMAN workshop on analysis of problematic compounds, Sep. 1-2, 2015, Rhodes, Greece
Σ188
Tsilikidis I., Nika M. C., Christophoridis C. and Thomaidis N. S. “Identification of ozonation transformation products of furosemide using LC-HR-MS/MS” 14th International Conference on Environmental Science and Technology (CEST 2015), September 03-05, 2015, Rhodes, Greece, p. 53.
Σ187
D.E. Damalas, A.A. Bletsou, A. Agalou, D. Beis, N.S. Thomaidis "A toxicokinetic approach to assess the effects on metabolism of Triclosan and Benzotriazoles in zebrafish (Danio rerio) embryos" 14th International Conference on Environmental Science and Technology, Sep. 3-5, 2015, Rhodes, Greece, p.108 (CEST2015_00554)
Σ186
A.A. Bletsou, D.E. Damalas, P. Gago Ferrero, E.L. Schymanski, H.P. Singer, J. Hollender, N.S. Thomaidis "Wide-scope target screening of 2327 emerging pollutants during wastewater treatment by RP-LC-QTOF-HR-MS/MS with an accurate-mass database" 14th International Conference on Environmental Science and Technology, Sep. 3-5, 2015, Rhodes, Greece, p. 51 (cest2015_01391)
Σ185
N.A. Alygizakis, R. Aalizadeh, P. Gago-Ferrero, A.A. Bletsou, N.S. Thomaidis, “peakTrams: An automated computational approach for the simultaneous detection of features in Reverse Phase and HILIC HRMS screening”, 14th International Conference on Environmental Science and Technology, 3-5 September, 2015, Rhodes Island, Greece
Σ184
N.A. Alygizakis, P. Gago-Ferrero, M. Loos, H. Singer, J. Hollender, N.S. Thomaidis, “Automatic detection of concentration trends of organic pollutants in wastewater using computational approaches and chemometric tools on data acquired by LC-HRMS”, 14th International Conference on Environmental Science and Technology, 3-5 September, 2015, Rhodes Island, Greece
Σ183
Psoma A.K., Beretsou V.G., Georgantzi E.N., Bletsou A.A., Gulde R., Fenner K. and Thomaidis N.S.  “A workflow for the orthogonal identification of biotransformation products by HILIC-QTOFMS” 14th International Conference on Environmental Science and Technology (CEST), September 3-5, 2015, Rhodes, Greece, p.48.
Σ182
P. Gago-Ferrero, A.A. Bletsou, R. Aalizadeh, N.S. Thomaidis “IDENTIFICATION OF UNKNOWNS IN REAL WASTEWATER THROUGH THE APPLICATION OF A LC-QTOF-MS BASED WORKFLOW, SETAC, 2015, Barcelona,
Σ181
Anna A. Bletsou, Dimitrios E. Damalas, Pablo Gago Ferrero, Emma L. Schymanski, Heinz P. Singer, Juliane Hollender, Nikolaos S. Thomaidis “TARGET SCREENING OF 2327 EMERGING POLLUTANTS IN ENVIRONMENTAL SAMPLES BY RP-LC-QTOF-HR-MS/MS WITH AN ACCURATE-MASS DATABASE” Mediterranean Sea Region Countries Mass Spectrometry Workshop (MEDMSIII), 28 June-2 July, 2015, Athens, Greece
Σ180 Pablo Gago Ferrero, Anna A. Bletsou, E.L. Schymanski, Reza Aalizadeh, H. Singer, J. Hollender, Nikolaos S. Thomaidis “DEVELOPMENT OF A LC-HRMS/MS WORKFLOW FOR SUSPECT AND NON-TARGET SCREENING OF ORGANIC CONTAMINANTS OF EMERGING CONCERN IN ENVIRONMENTAL SAMPLES” Mediterranean Sea Region Countries Mass Spectrometry Workshop (MEDMSIII), 28 June-2 July, 2015, Athens, Greece
Σ179
Beretsou V.G., Psoma A.K., Bletsou A.A. and Thomaidis N.S. “Biotransformation of citalopram: insights from identification of transformation products by LC-QToF-MS” Mediterranean Sea Region Countries Mass Spectrometry Workshop (MEDMS III), June 28 to July 2, 2015, Athens, Greece.
Σ178
N.A. Alygizakis, P. Gago-Ferrero, N.S. Thomaidis, “Trend analysis of influent wastewater using R-based scripts and non-target HRMS approaches”, Mediterranean Sea Region Countries Mass Spectrometry Workshop (MEDMSIII), 28 June-2 July, 2015, Athens, Greece
Σ177
Bletsou A.A., Ferrero P.G., Psoma A.K., Aalizadeh R., Thomaidis N.S.  “Development of wide-scope high resolution mass spectrometric screening workflows for the determination of known and unknown emerging contaminants in wastewater samples” 9th Aegean Analytical Chemistry Days, September 29 to October 3, 2014, Chios, Greece.
Σ176 Damalas D.E., Bletsou A.A., Thomaidis N.S. “Screening of pesticides residues and their metabolites in wastewater samples using liquid chromatography quadrupole-time-of-flight mass spectrometry with an accurate-mass database” 9th Aegean Analytical Chemistry Days, August 29 – September 03, 2014, Chios, Greece.
Σ175
V.L. Borova, N.A. Alygizakis, A. Pavlidou, I. Hatzianestis, M. Ioannou, N.S. Thomaidis, “Development of a LC-QTOFMS Method for the spatial determination of pharmaceuticals, controlled psychoactive and illicit drugs and their metabolites in Saronic Gulf”, 9th International Conference Aegean Analytical Chemistry Days (AACD2014), 29-3 October, 2014, Chios Island, Greece
Σ174
Panara A. K., Pasias I. N., Thomaidis N. S.“Development and validation of an HILIC-UV method for the simultaneous determination of nucleotides in infant formula.’’ 9th Aegean Analytical Chemistry Days (AACD 2014), September 29- October 03, 2014, Chios, Greece, p. 127.
Σ173

A.K. Psoma, A.A. Bletsou, N.S. Thomaidis “Identification of biotransformation products of amine-containing pharmaceuticals formed in batch bioreactors” AACD 2014, 9th Aegean Analytical Chemistry Days, 29 Sepetember-3 October, 2014, Chios, Greece, p.108 (P2-08).

Σ172
I. Tsilikidis, C. Christophoridis, M.-C. Nika, N. S. Thomaidis, “Ozonation of furosemide under various physicochemical conditions. Elucidation of transformation pathway using LC-QTOF-MS.”, AACD 2014, 9th Aegean Analytical Chemistry Days, 29 September - 03 October 2014, Chios, Greece, p.109 (P2 09).
Σ171
A.K. Psoma, A.A. Bletsou, N.S. Thomaidis “Workflow for the identification of biotransformation products of amine-containing psychotropic drugs in the aquatic environment” EuCheMS 2014, 5th European Association for Chemical and Molecular Sciences Chemistry Congress, 31 August-4 September 2014,  Istanbul, Turkey, p.580 (P-A1-013) (Awarded).
Σ170 M.-C. Nika, A. A. Bletsou, E. Gikas, N. S. Thomaidis, “Degradation and by-products identification of benzothiazoles and benzotriazoles during chlorination by LC-HR-MS/MS”, EuCheMS  2014, 5th European Chemistry Congresses, 31 August - 04 September 2014, Istanbul, Turkey, p. 576 (P-A1-012) (Awarded).
Σ169 V. L. Borova, N. S. Thomaidis, C. Pistos “Simultaneous detection of new psychoactive substances (NPSs) in wastewater of Greece” EuCheMS, 5th European Chemistry Congress (ECC), European Association for Chemical and Molecular Sciences, 31 August - 4 September, 2014, Istanbul, Turkey, p. 240 (O-A1-04-05) (Invited).
Σ168
P. Gago-Ferrero, A.A. Bletsou, R. Aalizadeh, N.S.Thomaidis “Suspect and non-target screening of organic micropollutants in wastewater through the development of a LC-HRMS based workflow”. 5th European Chemistry Congress EuCheMS, 31 August -04 September, 2014, Istambul, Turkey, p.234 (O-A1-03-03).
Σ167
Marilena E. Dasenaki, Anna A. Bletsou, Nikolaos S. Thomaidis, Tony Drury “Quantitative multi-residue method for 150 veterinary drugs and pharmaceuticals in meat using liquid chromatography quadrupole-time-of-flight mass spectrometry (LC-QToF-MS), poster presentation (AGRO 260),  248th ACS National Meeting & Exposition, 2014, San Francisco, USA.
Σ166
Anna A. Bletsou, Marilena E. Dasenaki, Nikolaos S. Thomaidis, Emmanouil I. Dasenakis, Tony Drury, Petra Decker “Screening of pesticides residues and their metabolites in environmental samples using liquid chromatography quadrupole-time-of-flight mass spectrometry with an accurate-mass database”, poster presentation (AGRO 67), 13th IUPAC International Congress of Pesticide Chemistry, 2014, San Francisco, USA.
Σ165
Anna A. Bletsou, Aikaterini K. Psoma, Pablo Gago Ferrero, Reza Aalizadeh, Nikolaos S. Thomaidis “Development of a LC-HRMS workflow for suspect and non-target screening of contaminants of emerging concern in environmental water samples”, oral presentation (ENVR 888), 248th ACS National Meeting & Exposition, 2014, San Francisco, USA.
Σ164
Anna A. Bletsou, Aikaterini K. Psoma, Pablo Gago Ferrero, Nikolaos S. Thomaidis “Targeted determination of 1525 micropollutants and transformation products in wastewater by liquid chromatography quadrupole-time-of-flight mass spectrometry with an accurate-mass database”, poster presentation (ENVR 553), 248th ACS National Meeting & Exposition, 2014, San Francisco, USA.
Σ163 P. Gago-Ferrero, A.A. Bletsou, R. Aalizadeh, N.S.Thomaidis “Non-target approach for the determination of novel micropollutants in wastewater using liquid chromatography quadrupole-time of flight mass spectrometry (LC-QTOF-MS)”. 10th Annual LC/MS/MS Workshop on Environmental Applications and Food Safety, 1-3 July, 2014, Barcelona, Spain.
Σ162
Nikolaos S. Thomaidis “Wide-scope mass spectrometric screening determination of emerging contaminants in wastewater samples” 10th Annual LC/MS/MS Workshop on Environmental Applications and Food Safety, 1-3 July, 2014, Barcelona, Spain (Invited).