用于测定动物脂肪中蝇毒磷及其他有机磷农药残留的连续蒸馏装置的优化
Optimization of sweep codistillation apparatus for determination of coumaphos and other organophosphorus pesticide residues in animal fat.
作者信息
Brown R L, Farmer C N, Millar R G
出版信息
J Assoc Off Anal Chem. 1987 May-Jun;70(3):442-5.
Optimum conditions have been developed for the quantitative recovery of coumaphos from animal fat by using a commercial sweep codistillation unit. Under the conditions specified (255 degrees C distillation temperature, 250 mL/min of nitrogen, 60 min sweep time) and using Florisil trapping, the mean recovery of coumaphos was 91% with a coefficient of variation of 6%. Other organophosphorus pesticides recovered include diazinon, chlorpyrifos, ethion, and bromophos-ethyl with recoveries ranging from 90 to 96% and coefficients of variation ranging between 4 and 6%.
已开发出通过使用商用吹扫共蒸馏装置从动物脂肪中定量回收蝇毒磷的最佳条件。在规定条件下（蒸馏温度255摄氏度、氮气流量250毫升/分钟、吹扫时间60分钟）并使用弗罗里硅土捕集，蝇毒磷的平均回收率为91%，变异系数为6%。回收的其他有机磷农药包括二嗪农、毒死蜱、乙硫磷和乙基溴硫磷，回收率在90%至96%之间，变异系数在4%至6%之间。
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