D.C. Lehotay : rechercher sur Z-Library

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1

Fast and Easy Multiresidue Method Employing Acetonitile Extraction_Partitioning and “Dispersive Solid-Phase Extraction” for the Determination of Pesticide Residues in Produce

Michelangelo, Anastassiades, Lehotay, Steven J

Journal:

Journal of AOAC International

Année:

2003

Langue:

english

Fichier:

PDF, 183 KB

english, 2003

2

Simultaneous analysis of aminoglycosides with many other classes of drug residues in bovine tissues by ultrahigh-performance liquid chromatography–tandem mass spectrometry using an ion-pairing reagent added to final extracts

Lehotay, Steven J., Lightfield, Alan R.

Journal:

Analytical and Bioanalytical Chemistry

Année:

2017

Langue:

english

Fichier:

PDF, 1.76 MB

english, 2017

3

Comparison of QuEChERS sample preparation methods for the analysis of pesticide residues in fruits and vegetables

Steven J. Lehotay, Kyung Ae Son, Hyeyoung Kwon, Urairat Koesukwiwat, Wusheng Fu, Katerina Mastovska, Eunha Hoh, Natchanun Leepipatpiboon

Journal:

Journal of Chromatography A

Année:

2010

Langue:

english

Fichier:

PDF, 1.72 MB

english, 2010

4

Determination of free and protein-bound methadone and its major metabolite EDDP: Enantiomeric separation and quantitation by LC/MS/MS

M.L. Etter, S. George, K. Graybiel, J. Eichhorst, D.C. Lehotay

Journal:

Clinical Biochemistry

Année:

2005

Langue:

english

Fichier:

PDF, 395 KB

english, 2005

5

Evaluation of analyte protectants to improve gas chromatographic analysis of pesticides

Michelangelo Anastassiades, Kateřina Maštovská, Steven J Lehotay

Journal:

Journal of Chromatography A

Année:

2003

Langue:

english

Fichier:

PDF, 646 KB

english, 2003

6

HPLC Study of Mancozeb Degradation on Leaves

Lehotay, J., Kisová, D.

Journal:

Journal of Liquid Chromatography

Année:

1993

Langue:

english

Fichier:

PDF, 207 KB

english, 1993

7

The use of ultra-high pressure liquid chromatography with tandem mass spectrometric detection in the analysis of agrochemical residues and mycotoxins in food – Challenges and applications

O’Mahony, John, Clarke, Lesa, Whelan, Michelle, O’Kennedy, Richard, Lehotay, Steven J., Danaher, Martin

Journal:

Journal of Chromatography A

Année:

2013

Langue:

english

Fichier:

PDF, 541 KB

english, 2013

8

Diagnosis and high incidence of hyperornithinemia-hyperammonemia-homocitrullinemia (HHH) syndrome in northern Saskatchewan

Sokoro, AbdulRazaq A. H., Lepage, Joyce, Antonishyn, Nick, McDonald, Ryan, Rockman-Greenberg, Cheryl, Irvine, James, Lehotay, Denis C.

Journal:

Journal of Inherited Metabolic Disease

Année:

2010

Langue:

english

Fichier:

PDF, 249 KB

english, 2010

9

Using of molecularly imprinted polymers for determination of gallic and protocatechuic acids in red wines by high performance liquid chromatography

Denderz, Natalia, Lehotay, Jozef

Journal:

Journal of Chromatography A

Année:

2014

Langue:

english

Fichier:

PDF, 2.00 MB

english, 2014

10

The Effect of Acetic and Formic Acid Formation during Accelerated Ageing on Embrittlement of Newsprint Paper

Jablonský, Michal, Katuščák, Svetozár, Holúbková, Silvia, Hroboňová, Katarína, Lehotay, Jozef

Journal:

Année:

2011

Langue:

english

Fichier:

PDF, 1.45 MB

english, 2011

11

Examination of the Chemical Composition of Propolis IX. Solid Phase Extraction of Coumarins from Propolis by Using Molecularly Imprinted Polymer

Hroboňová, Katarína, Lehotay, Jozef, Čižmárik, Jozef

Journal:

Nova Biotechnologica et Chimica

Année:

2013

Langue:

english

Fichier:

PDF, 280 KB

english, 2013

12

Assessment of Test Portion Sizes after Sample Comminution with Liquid Nitrogen in an Improved High-Throughput Method for Analysis of Pesticide Residues in Fruits and Vegetables

Lehotay, Steven J., Michlig, Nicolás, Lightfield, Alan R.

Journal:

Journal of Agricultural and Food Chemistry

Année:

2020

Langue:

english

Fichier:

PDF, 285 KB

english, 2020

13

Simultaneous analysis of organophosphorus and organochlorine pesticides in animal fat by gas chromatography with pulsed flame photometric and micro-electron capture detectors

Jitka Zrostlíková, Steven J. Lehotay, Jana Hajšlová

Journal:

Journal of Separation Science

Année:

2002

Langue:

english

Fichier:

PDF, 391 KB

english, 2002

14

Comparison of solid-phase extraction sorbents for cleanup in pesticide residue analysis of fresh fruits and vegetables

Frank J. Schenck, Steven J. Lehotay, Victor Vega

Journal:

Journal of Separation Science

Année:

2002

Langue:

english

Fichier:

PDF, 835 KB

english, 2002

15

Sensitivity and noise in GC–MS: Achieving low limits of detection for difficult analytes

Alexander B. Fialkov, Urs Steiner, Steven J. Lehotay, Aviv Amirav

Journal:

International Journal of Mass Spectrometry

Année:

2007

Langue:

english

Fichier:

PDF, 430 KB

english, 2007

16

Determination of dissolved sulphides in waste water samples by flow-through stripping chronopotentiometry with a macroporous mercury-film electrode

A. Manova, M. Strelec, F. Cacho, J. Lehotay, E. Beinrohr

Journal:

Analytica Chimica Acta

Année:

2007

Langue:

english

Fichier:

PDF, 118 KB

english, 2007

17

Clinical determination of 17-hydroxyprogesterone in serum by LC–MS/MS: Comparison to Coat-A-Count™ RIA method

Michele L. Etter, Jeff Eichhorst, Denis C. Lehotay

Journal:

Journal of Chromatography B

Année:

2006

Langue:

english

Fichier:

PDF, 277 KB

english, 2006

18

Identification and confirmation of chemical residues in food by chromatography-mass spectrometry and other techniques

Steven J. Lehotay, Katerina Mastovska, Aviv Amirav, Alexander B. Fialkov, Perry A. Martos, André de Kok, Amadeo R. Fernández-Alba

Journal:

TrAC Trends in Analytical Chemistry

Année:

2008

Langue:

english

Fichier:

PDF, 641 KB

english, 2008

19

Organic Acidurias and Related Abnormalities

Lehotay, Denis C., Clarke, Joe T.R., Renaldo, P.

Journal:

Critical Reviews in Clinical Laboratory Sciences

Année:

1995

Langue:

english

Fichier:

PDF, 3.34 MB

english, 1995

20

Pesticide Multiresidue Analysis in Cereal Grains Using Modified QuEChERS Method Combined with Automated Direct Sample Introduction GC-TOFMS and UPLC-MS/MS Techniques †

Mastovska, Katerina, Dorweiler, Kelly J., Lehotay, Steven J., Wegscheid, Jennifer S., Szpylka, Kelli A.

Journal:

Journal of Agricultural and Food Chemistry

Année:

2010

Langue:

english

Fichier:

PDF, 1.78 MB

english, 2010

21

Rapid Sample Preparation Method for LC−MS/MS or GC−MS Analysis of Acrylamide in Various Food Matrices

Mastovska, Katerina, Lehotay, Steven J.

Journal:

Journal of Agricultural and Food Chemistry

Année:

2006

Langue:

english

Fichier:

PDF, 201 KB

english, 2006

22

Structural characterization of product ions by electrospray ionization and quadrupole time-of-flight mass spectrometry to support regulatory analysis of veterinary drug residues in foods

Geis-Asteggiante, Lucía, Nuñez, Alberto, Lehotay, Steven J., Lightfield, Alan R.

Journal:

Rapid Communications in Mass Spectrometry

Année:

2014

Langue:

english

Fichier:

PDF, 4.86 MB

english, 2014

23

Combination of Analyte Protectants To Overcome Matrix Effects in Routine GC Analysis of Pesticide Residues in Food Matrixes

Maštovská, Kateřina, Lehotay, Steven J., Anastassiades, Michelangelo

Journal:

Analytical Chemistry

Année:

2005

Langue:

english

Fichier:

PDF, 339 KB

english, 2005

24

Ultratrace Analysis of Nine Macrolides, Including Tulathromycin A (Draxxin), in Edible Animal Tissues with Minicolumn Liquid Chromatography Tandem Mass Spectrometry

Martos, Perry A., Lehotay, Steven J., Shurmer, Bryn

Journal:

Journal of Agricultural and Food Chemistry

Année:

2008

Langue:

english

Fichier:

PDF, 3.08 MB

english, 2008

25

Analysis of Pesticide Residues in Eggs by Direct Sample Introduction/Gas Chromatography/Tandem Mass Spectrometry

Lehotay, Steven J., Lightfield, Alan R., Harman-Fetcho, Jennifer A., Donoghue, Dan J.

Journal:

Journal of Agricultural and Food Chemistry

Année:

2001

Langue:

english

Fichier:

PDF, 90 KB

english, 2001

26

TRACE ANALYSIS OF SOME ORGANIC COMPOUNDS IN ENVIRONMENT SAMPLE BY HPLC.

Jozef, LEHOTAY, Kararina, HROBOŇOVÁ, Štefan, HATRÍK

Journal:

Critical Reviews in Analytical Chemistry

Année:

1999

Langue:

english

Fichier:

PDF, 211 KB

english, 1999

27

Determination of Some Phenolic Acids in Propolis by an HPLC Method

Hroboňová, Katarína, Lehotay, Jozef, Čižmárik, Jozef

Journal:

Journal of Liquid Chromatography & Related Technologies

Année:

2008

Langue:

english

Fichier:

PDF, 198 KB

english, 2008

28

Sampling and Sample Processing in Pesticide Residue Analysis

Lehotay, Steven J., Cook, Jo Marie

Journal:

Journal of Agricultural and Food Chemistry

Année:

2015

Langue:

english

Fichier:

PDF, 652 KB

english, 2015

29

Quantitative Endogenous Formate Analysis in Plasma Using Headspace Gas Chromatography Without a Headspace Analyzer

Sokoro, A., Lehotay, D., Eichhorst, J., Treble, R.

Journal:

Journal of Analytical Toxicology

Année:

2007

Langue:

english

Fichier:

PDF, 576 KB

english, 2007

30

Separation Of Methionine Enantiomers By Using Teicoplanin And Cyclofructan Columns

Hroboňová, Katarína, Deáková, Zuzana, Moravčík, Jakub, Lehotay, Jozef, Armstrong, Daniel W., Lomenová, Anna

Journal:

Nova Biotechnologica et Chimica

Année:

2015

Langue:

english

Fichier:

PDF, 462 KB

english, 2015

31

Possible cyclic nucleotide regulation of calcium mediating myocardial contraction

Schwartz, A, Endman, M., Ezrailson, E., Lehotay, D., Leyey, G

Journal:

Année:

1977

Langue:

english

Fichier:

PDF, 836 KB

english, 1977

32

Evaluation of a recent product to remove lipids and other matrix co-extractives in the analysis of pesticide residues and environmental contaminants in foods

Han, Lijun, Matarrita, Jessie, Sapozhnikova, Yelena, Lehotay, Steven J.

Journal:

Journal of Chromatography A

Année:

2016

Langue:

english

Fichier:

PDF, 2.20 MB

english, 2016

33

Thermodynamic study of HPLC enantioseparations of some sulfur-containing amino acids on teicoplanin columns in ion-pairing reversed-phase mode

Bystrická, Zuzana, Bystrický, Roman, Lehotay, Jozef

Journal:

Journal of Liquid Chromatography & Related Technologies

Année:

2016

Langue:

english

Fichier:

PDF, 814 KB

english, 2016

34

Comparison of veterinary drug residue results in animal tissues by ultrahigh-performance liquid chromatography coupled to triple quadrupole or quadrupole–time-of-flight tandem mass spectrometry after different sample preparation methods, including use of a commercial lipid removal product

Anumol, Tarun, Lehotay, Steven J., Stevens, Joan, Zweigenbaum, Jerry

Journal:

Analytical and Bioanalytical Chemistry

Année:

2017

Langue:

english

Fichier:

PDF, 1.32 MB

english, 2017

35

Use of a quality control approach to assess measurement uncertainty in the comparison of sample processing techniques in the analysis of pesticide residues in fruits and vegetables

Lehotay, Steven J., Han, Lijun, Sapozhnikova, Yelena

Journal:

Analytical and Bioanalytical Chemistry

Année:

2018

Langue:

english

Fichier:

PDF, 2.03 MB

english, 2018

36

Inter-laboratory validation of an inexpensive streamlined method to measure inorganic arsenic in rice grain

Chaney, Rufus L., Green, Carrie E., Lehotay, Steven J.

Journal:

Analytical and Bioanalytical Chemistry

Année:

2018

Langue:

english

Fichier:

PDF, 531 KB

english, 2018

37

Hits and misses in research trends to monitor contaminants in foods

Lehotay, Steven J., Chen, Yibai

Journal:

Analytical and Bioanalytical Chemistry

Année:

2018

Langue:

english

Fichier:

PDF, 899 KB

english, 2018

38

Evaluation of Two Fast and Easy Methods for Pesticide Residue Analysis in Fatty Food Matrixes

Lehotay, Steven J, MaÅ¡tovskÃ¡, KateÅina, Yun, Seon Jong

Journal:

Journal of AOAC International

Année:

2005

Fichier:

PDF, 247 KB

2005

39

Fast and Easy Multiresidue Method Employing Acetonitrile Extraction/Partitioning and âDispersive Solid-Phase Extractionâ for the Determination of Pesticide Residues in Produce

Anastassiades, Michelangelo, Lehotay, Steven J, Å tajnbaher, Darinka, Schenck, Frank J

Journal:

Journal of AOAC International

Année:

2003

Langue:

english

Fichier:

PDF, 623 KB

english, 2003

40

Validation of a Fast and Easy Method for the Determination of Residues from 229 Pesticides in Fruits and Vegetables Using Gas and Liquid Chromatography and Mass Spectrometric Detection

Lehotay, Steven J, Kok, AndrÃ© de, Hiemstra, Maurice, Bodegraven, Peter van

Journal:

Journal of AOAC International

Année:

2005

Langue:

english

Fichier:

PDF, 281 KB

english, 2005

41

Use of Buffering and Other Means to Improve Results of Problematic Pesticides in a Fast and Easy Method for Residue Analysis of Fruits and Vegetables

Lehotay, Steven J, MaÅ¡tovskÃ¡, KateÅina, Lightfield, Alan R

Journal:

Journal of AOAC International

Année:

2005

Fichier:

PDF, 251 KB

2005

42

Comparison of Magnesium Sulfate and Sodium Sulfate for Removal of Water from Pesticide Extracts of Foods

Schenck, Frank J, Callery, Patrick, Gannett, Peter M, Daft, Jonathan R, Lehotay, Steven J

Journal:

Journal of AOAC International

Année:

2002

Langue:

english

Fichier:

PDF, 60 KB

english, 2002

43

Cardioprotective effects of selenium and morin hydrate in a murine model of chronic iron overload

Wally J. Bartfay, David Hou, Denis C. Lehotay, Emma Bartfay, Xiaoping Luo, Peter Liu

Journal:

The Journal of Trace Elements in Experimental Medicine

Année:

2000

Langue:

english

Fichier:

PDF, 102 KB

english, 2000

44

Barth syndrome: Clinical observations and genetic linkage studies

Dr. J. Christodoulou, R. R. McInnes, V. Jay, G. Wilson, L. E. Becker, D. C. Lehotay, B.-A. Platt, P. J. Bridge, B. H. Robinson, J. T. R. Clarke

Journal:

American Journal of Medical Genetics Part A

Année:

1994

Langue:

english

Fichier:

PDF, 1.11 MB

english, 1994

45

Analytical study of the additives system in polyethylene

Jozef Lehotay, Jaroslav Daněček, Otakar Líška, Ján Leško, Eva Brandšteterová

Journal:

Journal of Applied Polymer Science

Année:

1980

Langue:

english

Fichier:

PDF, 410 KB

english, 1980

46

Über die Nitrierung von Glutethimid

Géza Stájer, Pál Németh, Elemér Vinkler, Lajos Lehotay, Pál Sohár

Journal:

Archiv der Pharmazie

Année:

1979

Langue:

german

Fichier:

PDF, 212 KB

german, 1979

47

Chromatographic techniques in inborn errors of metabolism

Denis C. Lehotay

Journal:

Biomedical Chromatography

Année:

1991

Langue:

english

Fichier:

PDF, 1.08 MB

english, 1991

48

ChemInform Abstract: Chiral Separation of Enantiomers of Amino Acid Derivatives by HPLC on Vancomycin and Teicoplanin Chiral Stationary Phases.

J. Lehotay, K. Hrobonova, J. Krupcik, J. Cizmarik

Journal:

Année:

1999

Fichier:

PDF, 25 KB

1999

49

HPLC analysis of some substituted anilines and phenylurea herbicides in milk

Doc. Dr. E. Brandšteterová, D. Králiková, Doc. Ing. J. Lehotay, J. Tekel'

Journal:

Molecular Nutrition & Food Research

Année:

1994

Langue:

english

Fichier:

PDF, 139 KB

english, 1994

50

Simultaneous HPLC determination of phenylurea herbicides and their corresponding anilines in water after on-line preconcentration

Štefan Hatrík, Jozef Lehotay, Jozef Tekel'

Journal:

Journal of Separation Science

Année:

1994

Langue:

english

Fichier:

PDF, 292 KB

english, 1994