Bissacot D Z, Vassilieff I
Center for Toxicological Assistance (CEATOX), Institute of Biosciences, UNESP, Botucatu, São Paulo, Brazil.
J Anal Toxicol. 1997 Sep;21(5):397-402. doi: 10.1093/jat/21.5.397.
A procedure to determine residue concentrations of synthetic pyrethroid insecticides (flumethrin, deltamethrin, cypermethrin and cyhalothrin) in the milk and blood of lactating dairy cows was developed. Extraction was performed with acetoritrile, n-hexane partitioning, and silica gel column cleanup with n-hexane and diethyl ether. Analysis was carried out by high-performance liquid chromatography and ultraviolet detection. Recovery of the four pyrethroids averaged 78 to 91% with a minimum detectable concentration of 0.001 mg/kg. The method was reproducible and sensitive.
开发了一种测定泌乳奶牛乳汁和血液中合成拟除虫菊酯类杀虫剂（氟氯氰菊酯、溴氰菊酯、氯氰菊酯和氯氟氰菊酯）残留浓度的方法。采用乙腈萃取、正己烷分配，并通过硅胶柱用正己烷和乙醚进行净化。通过高效液相色谱法和紫外检测进行分析。四种拟除虫菊酯的回收率平均为78%至91%，最低检测浓度为0.001 mg/kg。该方法具有可重复性和灵敏性。
