Zobrazeno 1 - 10
of 74
pro vyhledávání: '"William J. A. VandenHeuvel"'
Autor:
Timothy D. J. Halls, Peter G. Wislocki, William J. A. VandenHeuvel, Dale R. Sanson, Amechi C. Chukwudebe
Publikováno v:
Journal of Agricultural and Food Chemistry. 44:2870-2877
Following foliar application of [14C]thiabendazole to growing wheat, soybean, and sugar beet plants, samples were taken 2 h post-treatment, at immature stages, and at normal harvest. Significant levels of [14C]thiabendazole residues were found in str
Autor:
Byron H. Arison, John A. S. Smith, Deborah L. Zink, Louis S. Crouch, William J. A. VandenHeuvel, Christopher L. Wrzesinski
Publikováno v:
Journal of Agricultural and Food Chemistry. 44:304-312
Cabbage was treated with a single application of [14C]-MK-0244, a semisynthetic avermectin analogue, at 0.3 lb/acre and harvested 1 day after application. The wrapper leaf and exterior head surface of the cabbage were rinsed with methanol, and 12 deg
Autor:
William J. A. VandenHeuvel, Peter G. Wislocki, Timothy D. J. Halls, Amechi C. Chukwudebe, Dale R. Sanson
Publikováno v:
Journal of Agricultural and Food Chemistry. 42:2964-2969
Thiabendazole (TBZ), an anthelminthic and fungicide of the benzimidazole class, was rapidly metabolized by lactating goats and laying hens. In lactating goats dosed orally with 120 mg of [14C]TBZ daily for 7 consecutive days and sacrificed at about 2
Autor:
William J. A. VandenHeuvel, Byron H. Arison, Peter G. Wislocki, Louis S. Crouch, Lawrence F. Colwell, William F. Feely
Publikováno v:
Journal of Agricultural and Food Chemistry. 40:691-696
Photodegradation of 4''-(epimethylamino)-4''-deoxyavermectin B 1a as thin films on glass, using artificial light, resulted in the formation of multiple photodegradates. Six primary degradates and two secondary degradates were identified. The primary
Publikováno v:
Veterinary parasitology. 48(1-4)
Abamectin (avermectin B1) and ivermectin (22,23-dihydroavermectin B1) are high molecular weight hydrophobic compounds, active against a variety of animal parasites and insects. Numerous environmental fate and effects studies have been carried out in
Publikováno v:
Analytical Biochemistry. 95:579-586
The development of a mass spectrometric isotope dilution assay for the sulfoxide Sulindac and its two metabolites (the corresponding sulfide and sulfone) in human plasma is described. The method involves the use of deuterium-containing analogs as int
Publikováno v:
Journal of Chromatography A. 399:251-258
A confirmatory assay for residues of the anthelmintic agent clorsulon [4-amino-6-(trichloroethenyl)-1,3-benzenedisulfonamide] in cattle kidney tissue has been developed. The assay involves isolation of a drug-containing fraction by solvent extraction
Publikováno v:
Journal of Chromatography A. 142:587-596
The preparation and gas chromatographic-mass spectrometric behavior of the methyl and trimethylsilyl esters of indomethacin, 1-(p-chlorobenzoyl)-5-methoxy-2-methylindole-3-acetic acid, are described. Reaction of this anti-inflammatory drug with diazo
Autor:
Francis P. Baylis, Richard T. Robertson, Dennis H. Wallace, R.W. Walker, David H. Minsker, William J. A. VandenHeuvel, Joseph E. Brown, Avery Rosegay
Publikováno v:
Journal of Agricultural and Food Chemistry. 31:548-553
Publikováno v:
Journal of AOAC INTERNATIONAL. 64:1259-1263
Isoequilin A, which is produced by the acid-induced isomerization of equilin, has been resolved into 3 major components by gas chromatography. Tentative identification of the 3 compounds was made by using combined gas chromatography/mass spectroscopy