Gillespie A M, Walters S M
J Assoc Off Anal Chem. 1984 Mar-Apr;67(2):290-4.
An evaluation of an extraction technique for elimination of lipids during pesticide residue analysis was undertaken, which included a study of the parameters involved in an attempt to optimize the separation and recovery of selected pesticides from lipid samples. The choice of alumina, the degree of water deactivation of alumina, the amount of alumina relative to the weight of sample taken, the volume and composition of extraction solvent, the blending time, and the filtration procedure were all significant factors. Optimization of these factors resulted in greater than 90% recoveries of selected chlorinated pesticides from fortified fatty samples. In addition, the amount of co-extracted lipid material was about one-third of that obtained with the official method (AOAC 29.014), and less analytical time was required for the extraction by the proposed technique. The formation of troublesome emulsions sometimes encountered with the official method was also eliminated.
对农药残留分析过程中消除脂质的提取技术进行了评估，其中包括对相关参数的研究，试图优化从脂质样品中分离和回收选定农药的方法。氧化铝的选择、氧化铝的水失活程度、相对于所取样品重量的氧化铝用量、提取溶剂的体积和组成、混合时间以及过滤程序都是重要因素。对这些因素进行优化后，从强化脂肪样品中回收选定的氯化农药的回收率超过90%。此外，共提取的脂质物质的量约为官方方法（AOAC 29.014）所得量的三分之一，并且所提出的技术提取所需的分析时间更短。官方方法有时会遇到的麻烦乳液的形成也得以消除。
