Gilvydis D M, Walters S M
Food and Drug Administration, Pesticides and Industrial Chemicals Research Center, Detroit, MI 48207.
J Assoc Off Anal Chem. 1990 Sep-Oct;73(5):753-61.
A method is described for determining residues in foods of thiabendazole, thiophanate methyl, the di-oxygen analogue metabolite [dimethyl 4,4'-O-phenylene bis (allophanate)] that is the metabolite name of the latter, and methyl-2-benzimidazole carbamate, which is the major metabolite and fungitoxic principle common to both thiophanate methyl and benomyl. The residues are extracted from the product using methanol and are partitioned into dichloromethane after initial acidification and again after subsequent alkalinization of the extract. Residues are separated and quantified by reverse-phase liquid chromatography using an ion-pairing mobile phase with UV and fluorescence detectors in tandem. Recoveries from 7 different food crops fortified at 0.2-35 ppm levels ranged from 64 to 105%.
本文描述了一种测定食品中噻菌灵、甲基托布津、二氧类似物代谢物[4,4'-氧代亚苯基双（脲基甲酸甲酯）]（后者的代谢物名称）以及甲基2-苯并咪唑氨基甲酸酯的残留量的方法。甲基2-苯并咪唑氨基甲酸酯是甲基托布津和苯菌灵共同的主要代谢物和真菌毒性成分。残留物用甲醇从产品中提取，提取物先酸化，再碱化，然后分配到二氯甲烷中。残留物通过反相液相色谱法分离和定量，使用离子对流动相，串联紫外和荧光检测器。在0.2 - 35 ppm水平下对7种不同粮食作物进行加标回收试验，回收率在64%至105%之间。
