Zobrazeno 1 - 10 of 64 pro vyhledávání: '"Jeffrey A Hurlbut"'
1
Liquid Chromatography/Tandem Mass Spectrometry Analysis of Chloramphenicol in Cooked Crab Meat
Autor: Heidi S Rupp, James S Stuart, Jeffrey A Hurlbut
Publikováno v: Journal of AOAC INTERNATIONAL. 88:1155-1159
A liquid chromatography/tandem mass spectrometry (LC/MS/MS) method is described for the extraction, cleanup, determination, and confirmation of chloramphenicol (CAP) in cooked crab meat. The method involves pulverization of cooked crab meat with dry
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f44c05dad7b6f875c296e2a26d1c87b
https://doi.org/10.1093/jaoac/88.4.1155
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2
Confirmation of Sulfamethazine, Sulfathiazole, and Sulfadimethoxine Residues in Condensed Milk and Soft-Cheese Products by Liquid Chromatography/Tandem Mass Spectrometry
Autor: Susan B. Clark, Jeffrey A Hurlbut, Sherri B Turnipseed, Laura R. Kuck, John N. Sofos, Mark R. Madson
Publikováno v: Journal of AOAC INTERNATIONAL. 88:736-743
A liquid chromatography/tandem mass spectrometry method (LC/MS/MS) is described for the simultaneous detection of 3 sulfonamide drug residues at 1.25 ppb in condensed milk and soft-cheese products. The 3 sulfonamide drugs of interest are sulfathiazol
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38a908715e80e48c756793c04760de86
https://doi.org/10.1093/jaoac/88.3.736
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3
Multilaboratory Validation of a Method To Confirm Chloramphenicol in Shrimp and Crabmeat by Liquid Chromatography-Tandem Mass Spectrometry
Autor: Kristl Youngs, Krystle Ferbos, Barbara K Neuhaus, Walter Hammack, Mary C Carson, Donna Kilpatrick, Jeffrey A Hurlbut, James S Stuart, David N. Heller, Cristina B Nochetto, Amy N Brown
Publikováno v: Journal of AOAC INTERNATIONAL. 86:1135-1143
An existing method for chloramphenicol (CAP) determination in shrimp using a gas chromatograph with electron capture detector was adapted for confirmation of CAP with a liquid chromatograph interfaced to a triple quadrupole mass spectrometer. CAP res
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d610298d0f5caa94ec234053831175d
https://doi.org/10.1093/jaoac/86.6.1135
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4
Interlaboratory Comparison of Methods for the Determination of Incurred Tilmicosin Residues in Bovine Liver
Autor: Susan B. Clark, Glenda James, Brenda Fuerst, John J. O'rangers, Mark R. Madson, Robin S. Readnour, Sydney Griffith, John N. Sofos, W. Douglas Rowe, Jeffrey A Hurlbut
Publikováno v: Journal of AOAC INTERNATIONAL. 85:1260-1267
The objective of this study was to compare 2 methods for the determination of tilmicosin residues in bovine liver samples. Three laboratories participated in the comparison of the 2 methods. The first method was described in a New Animal Drug Applica
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ed07a27192f0d1e2889db2a82cf5955
https://doi.org/10.1093/jaoac/85.6.1260
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5
Concurrent Determination of Four Fluoroquinolones in Catfish, Shrimp, and Salmon by Liquid Chromatography with Fluorescence Detection
Autor: Steve A Gonzales, Sherri B Turnipseed, Jeffrey A Hurlbut, Joseph M Storey, Calvin C Walker, José E Roybal, Allen P Pfenning
Publikováno v: Journal of AOAC INTERNATIONAL. 85:1293-1301
A liquid chromatographic (LC) method with fluorescence detection was developed for concurrent determination of 4 fluoroquinolones: ciprofloxacin (CIPRO), enrofloxacin (ENRO), sarafloxacin (SARA), and difloxacin (DIFLX) in catfish, shrimp, and salmon.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2253799259fdc4c64c296455c738035e
https://doi.org/10.1093/jaoac/85.6.1293
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6
Confirmation of Phenylbutazone Residues in Bovine Kidney by Liquid Chromatography/Mass Spectrometry
Autor: Gene J Nandrea, Susan B. Clark, Mark R. Madson, Sherri B Turnipseed, Jeffrey A Hurlbut, John N. Sofos
Publikováno v: Journal of AOAC INTERNATIONAL. 85:1009-1014
A confirmatory method is described for phenylbutazone (PB) residues in bovine kidney tissue. Ground kidney tissue is diluted with water, and the mixture is made basic with 25% ammonium hydroxide in water; the lipids are extracted with ethyl and petro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9f29a3c547ba7c8e53547be879bceae
https://doi.org/10.1093/jaoac/85.5.1009
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7
LC/MS Confirmation of Ionophores in Animal Feeds
Autor: Steve A Gonzales, Sherri B Turnipseed, José E Roybal, Jeffrey A Hurlbut, Mark R. Madson, Allen P Pfenning
Publikováno v: Journal of AOAC INTERNATIONAL. 84:640-648
A liquid chromatographic/mass spectrometric (LC/MS) electrospray confirmation method has been developed to confirm 4 ionophores (monensin, lasalocid, salinomycin, and narasin) in a variety of animal feeds using a single quadrupole mass spectrometer.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33e3a518ce603849b031d1939ae1cdd6
https://doi.org/10.1093/jaoac/84.3.640
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8
Simultaneous Determination of Residues of Chloramphenicol, Florfenicol, Florfenicol Amine, and Thiamphenicol in Shrimp Tissue by Gas Chromatography with Electron Capture Detection
Autor: Sherri B Turnipseed, Allen P Pfenning, Heidi S Rupp, Steve A Gonzales, Jeffrey A Hurlbut, José E Roybal
Publikováno v: Journal of AOAC INTERNATIONAL. 83:26-30
A gas chromatographic (GC) method is presented for determining residues of chloramphenicol (CAP), florfenicol (FF), florfenicol amine (FFa), and thiamphenicol (TAP) in shrimp tissues, with meta-nitrochloramphenicol (mCAP) as the internal standard. Th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3129ba408fe431f089c2441d883bf605
https://doi.org/10.1093/jaoac/83.1.26
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9
Determination of Residues of Azamethiphos in Salmon Tissue by Liquid Chromatography with Fluorescence Detection
Autor: Sherri B Turnipseed, José E Roybal, Steve A Gonzales, Jeffrey A Hurlbut, Allen P Pfenning
Publikováno v: Journal of AOAC INTERNATIONAL. 82:1224-1228
A liquid chromatographic (LC) method with fluorescence detection (FLD) is described for determining residues of the pesticide azamethiphos (AZA) in salmon tissue. The sample is extracted with ethyl acetate, centrifuged, dehydrated with anhydrous sodi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb2e5104e5be7bc7d5b1c3a3b910c2e2
https://doi.org/10.1093/jaoac/82.5.1224
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10
Confirmation of avermectin residues in food matrices with negative-ion atmospheric pressure chemical ionization liquid chromatography/mass spectrometry
Autor: Allen P Pfenning, Heidi S Rupp, Steve A Gonzales, Sherri B Turnipseed, Jeffrey A Hurlbut, José E Roybal
Publikováno v: Rapid Communications in Mass Spectrometry. 13:493-499
A multi-residue LC/MS method has been developed to confirm avermectin drug residues in several food matrices. Ivermectin (IVR), doramectin (DOR), eprinomectin (EPR) and moxidectin (MOX) are confirmed using atmospheric pressure chemical ionization (AP
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e0456c292d94122afb29fb8a9081f59
https://doi.org/10.1002/(sici)1097-0231(19990330)13:6<493::aid-rcm514>3.0.co
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