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Analytical Methods for Diethylstibestrol and Zeranol in Muscle Foods  

Ha, Jae-Ho (Korea Food Research Institute)
Publication Information
Korean Journal of Food Science and Technology / v.34, no.3, 2002 , pp. 385-389 More about this Journal
Abstract
Analytical method for diethylstibestrol (DES) and zeranol, which are growth promoters, in muscle foods was studied. Through selected ion monitoring analysis by GC-MSD for hormones, $M^+$ 412, 420, 416, and 433 for DES, $D_8DES$, ${\beta}-estradiol$, and zeranol, respectively, were selected for quantitative analysis. Removal of interferences in meat was done by passing the meat through 1 cc of strong anion exchanges resin, Dowex $2{\times}8$, 400 mesh, whereby the recoveries of DES and zeranol were achieved. Recoveries of DES and zeranol were ranged from 85 to 110%, and 75 to 110%, respectively, in meat using $D_8DES$ as an internal standard, while were 82 to 105%, and 65 to 120%, respectively, using ${\beta}-estradiol$ as an internal standard. These results show that both $D_8DES$ and ${\beta}-estradiol$ can be adopted as the internal standard for the analysis of DES and zeranol in muscle foods. Limits of detection of DES and zeranol were 0.05 and 1.0 ng/g, and limits of quantitation were 0.5 and 1.0 ng/g, respectively. The results of this study revealed no DES and zeranol were present in 14 samples of beefs, porks, ducks, chickens, mutiplicated flat fish, and trout.
Keywords
diethylstibestrol; zeranol; muscle foods; GC-MSD;
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