用氧化铝清理饲料级脂肪中的狄氏剂残留。
Aluminum oxide cleanup of feed grade fats for residues of dieldrin.
作者信息
Lane L G, Gray C, Minyard J P
出版信息
J Assoc Off Anal Chem. 1977 May;60(3):682-4.
A method is described for the analysis of dieldrin in feed grade fats. Fat samples in petroleum ether are cleaned up by column chromatography on 10% deactivated aluminum oxide followed by Florisil and analyzed by electron capture gas chromatography. Fourteen laboratories tested the method for determining dieldrin in naturally contaminated feed grade fats. Recoveries averaged greater than 90% with a coefficient of variation of 13% (0.54 ppm +/- 0.07), indicating that the method is sufficiently reproducible to be used by different laboratories for detecting dieldrin in feed grade fats.
描述了一种分析饲料级脂肪中狄氏剂的方法。石油醚中的脂肪样品通过在10%去活化氧化铝上进行柱色谱，然后用弗罗里硅土进行净化，并通过电子捕获气相色谱法进行分析。14个实验室测试了该方法用于测定天然受污染饲料级脂肪中狄氏剂的情况。回收率平均大于90%，变异系数为13%（0.54 ppm±0.07），表明该方法具有足够的重现性，可供不同实验室用于检测饲料级脂肪中的狄氏剂。
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