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United States Department of Agriculture

Agricultural Research Service

Related Topics

Alan R Lightfield
Residue Chemistry and Predictive Microbiology
Chemist

Phone: (215) 233-6768
Fax: (215) 233-6442
Room 1127
600 E MERMAID LN
ERRC
WYNDMOOR, PA, 19038-8598


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Structural characterization of fragment ions by electrospray ionization and Q-TOF mass spectrometry to support regulatory analysis of veterinary drug residues in foods - (Peer Reviewed Journal)
Nunez, A., Geis-Asteggiante, L., Lehotay, S.J., Lightfield, A.R. 2014. Structural characterization of fragment ions by electrospray ionization and Q-TOF mass spectrometry to support regulatory analysis of veterinary drug residues in foods. Rapid Communications in Mass Spectrometry. 28(10):1061-1081.
Rapid analysis of aminoglycoside antibiotics in bovine tissues using disposable pipette extraction and ultrahigh performance liquid chromatography - tandem mass spectrometry - (Peer Reviewed Journal)
Lehotay, S.J., Mastovska, K., Lightfield, A.R., Nunez, A., Dutko, T., Ng, C., Bluhm, L. 2013. Rapid analysis of aminoglycoside antibiotics in bovine tissues using disposable pipette extraction and ultrahigh performance liquid chromatography - tandem mass spectrometry. Journal of Chromatography A. 1313:103-112.
Hot study: Investigating the risk for violative meat residues in bob veal calves fed colostrum from cows treated at dry-off with cephapirin benzathine - (Peer Reviewed Journal)
Hausler, K., Godden, S.M., Schneider, M.J., Lightfield, A.R., Bulthaus, M., Haines, D. 2013. Hot study: Investigating the risk for violative meat residues in bob veal calves fed colostrum from cows treated at dry-off with cephapirin benzathine. Journal of Dairy Science. 96(4):2349-2355.
Ruggedness testing and validation of a practical analytical method for > 100 veterinary drug residues in bovine muscle by ultrahigh performance liquid chromatography – tandem mass spectrometry - (Peer Reviewed Journal)
Geis-Asteggiante, L., Lehotay, S.J., Lightfield, A.R., Dutko, T., Ng, C., Bluhm, L. 2012. Ruggedness testing and validation of a practical analytical method for > 100 veterinary drug residues in bovine muscle by ultrahigh performance liquid chromatography – tandem mass spectrometry. Journal of Chromatography A. 1258:43-54.
Evaluation of a multiclass, multiresidue liquid chromatography-tandem mass spectrometry method for analysis of 120 veterinary drugs in bovine kidney - (Peer Reviewed Journal)
Schneider, M.J., Lehotay, S.J., Lightfield, A.R. 2012. Evaluation of a multiclass, multiresidue liquid chromatography-tandem mass spectrometry method for analysis of 120 veterinary drugs in bovine kidney. Drug Testing and Analysis Journal. 4(1):91-102.
Development and validation of a streamlined method designed to detech residues of 62 veterinary drugs in bovine kidney using ultrahigh performance liquid chromatography - tandem mass spectrometry - (Peer Reviewed Journal)
Lehotay, S.J., Lightfield, A.R., Geis-Asteggiante, L., Schneider, M.J., Dutko, T., Ng, C., Bluhm, L., Mastovska, K. 2012. Development and validation of a streamlined method designed to detech residues of 62 veterinary drugs in bovine kidney using ultrahigh performance liquid chromatography - tandem mass spectrometry. Drug Testing and Analysis Journal. 4:75-90.
A multiclass multiresidue LC-MS/MS method for analysis of veterinary drugs in bovine kidney - (Proceedings)
Schneider, M.J., Lehotay, S.J., Lightfield, A.R. 2012. A multiclass multiresidue LC-MS/MS method for analysis of veterinary drugs in bovine kidney. Euroresidue Conference Proceedings. 2:515.
Multi-Analyst, Multi-Matrix Performance of the QuEChERS Approach for Pesticide Residues in Foods and Feeds Using LC-MS/MS Analysis with Different Calibration Techniques - (Peer Reviewed Journal)
Lehotay, S.J., Mastovska, K., Lightfield, A.R., Gates, R.A. 2010. Multi-Analyst, Multi-Matrix Performance of the QuEChERS Approach for Pesticide Residues in Foods and Feeds Using LC-MS/MS Analysis with Different Calibration Techniques. Journal of Association of Official Analytical Chemists International. 93(2):355-367.
Comparison of screening methods for antibiotics in beef kidney juice and serum - (Peer Reviewed Journal)
Schneider, M.J., Mastovska, K., Lehotay, S.J., Lightfield, A.R., Kinsella, B., Shultz, C.2009. Comparison of screening methods for antibiotics in beef kidney juice and serum. Analytica Chimica Acta. 637:290-297.
New Method for the Analysis of Flukicide and Other Anthelmintic Residues in Bovine Milk and Liver using LC-MS/MS - (Peer Reviewed Journal)
Kinsella, B., Lehotay, S.J., Mastovska, K., Lightfield, A.R., Furey, A., Danaher, M. 2009. New Method for the Analysis of Flukicide and Other Anthelmintic Residues in Bovine Milk and Liver using Liquid Chromatography - Tandem Mass Spectrometry. Anal. Chim. Acta. (637):196-207.
Streamlining methodology for the multiresidue analysis of beta-lactam antibiotics in bovine kidney using liquid chromatography-tandem mass spectrometry - (Peer Reviewed Journal)
Mastovska, K., Lightfield, A.R. 2008. Streamlining methodology for the multiresidue analysis of beta-lactam antibiotics in bovine kidney using liquid chromatography-tandem mass spectrometry. Journal of Chromatography A. 1202:118-123.
Reversed phase and aqueous normal phase retention in multiclass LC-MS analysis of antibiotics - (Trade Journal)
Mastovska, K., Lightfield, A.R. 2008. Reversed phase and aqueous normal phase retention in multiclass LC-MS analysis of antibiotics. American Laboratory.
New Method for Analysis of Multiple Anthelmintic Residues in Animal Tissue - (Proceedings)
Kinsella, B., Lehotay, S.J., Lightfield, A.R., Mastovska, K., Furey, A., Danaher, M. 2008. New Method for Analysis of Multiple Anthelmintic Residues in Animal Tissue. Euroresidue Conference Proceedings. p.1147-1152.
A Comparison of the FAST, Premi® and KIS (TradeMark) Tests for Detection of Antibiotics in Beef Kidney Juice and Serum - (Proceedings)
Schneider, M.J., Lehotay, S.J., Mastovska, K., Lightfield, A.R., Kinsella, B., Shultz, C. 2008. A comparison of the fast, premi® and kis (trademark) tests for detection of antibiotics in beef kidney juice and serum. Proceedings of Euroresidue VI - Residues of Veterinary Drugs in Food Conference. p.389-394.
Confirmatory and Quantitative Analysis of B-Lactam Antibiotics in Bovine Kidney Tissue by Dispersive Solid-Phase Extraction and Liquid Chromatography-Tandem Mass Spectrometry - (Peer Reviewed Journal)
Fagerquist, C.K., Lightfield, A.R., Lehotay, S.J. 2005. Confirmatory and quantitative analysis of b-lactam antibiotics in bovine kidney tissue by dispersive solid-phase extraction and liquid chromatography-tandem mass spectrometry. Analytical Chemistry 5(77).1473-1482.
Use of Buffering to Improve Results of Problematic Pesticides in a Fast and Easy Method for Residue Analysis of Fruits and Vegetables - (Peer Reviewed Journal)
Lehotay, S.J., Mastovska, K., Lightfield, A.R. 2005. Use of buffering to improve results of problematic pesticides in a fast and easy method for residue analysis of fruits and vegetables. Journal of Association of Official Analytical Chemists International. 88.pp. 615-629.
Analysis for B-Lactam Antibiotics in Kidney Tissue by Liquid Chromatography with Electrospray Ionization and Selective Reaction Monitoring/tandem Ion Trap Mass Spectrometry - (Peer Reviewed Journal)
FAGERQUIST, C.K., LIGHTFIELD, A.R. ANALYSIS FOR B-LACTAM ANTIBIOTICS IN KIDNEY TISSUE BY LIQUID CHROMATOGRAPHY WITH ELECTROSPRAY IONIZATION AND SELECTIVE REACTION MONITORING/TANDEM ION TRAP MASS SPECTROMETRY. RAPID COMMUNICATIONS IN MASS SPECTROMETRY. 2003.
Approaches and Recommendations to Validate Ms Confirmation Criteria for Veterinary Drug Residues in Food - (Abstract Only)
LEHOTAY, S.J., SCHNEIDER, M.J., FAGERQUIST, C.K., LIGHTFIELD, A.R. APPROACHES AND RECOMMENDATIONS TO VALIDATE MS CONFIRMATION CRITERIA FOR VETERINARY DRUG RESIDUES IN FOOD. 116TH AOAC INTERNATIONAL ANNUAL MEETING. ABSTRACT. 2002. P. 80.
An Spe Column/teflon Sleeve Assembly for the in-Line Retention During Supercritical Fluid Extraction of Trace Level Analities from Biological Matrices - (Peer Reviewed Journal) - (23-Oct-94)
Last Modified: 9/2/2014
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