State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P. R. China.
J Sep Sci. 2018 Dec;41(24):4515-4524. doi: 10.1002/jssc.201800631. Epub 2018 Nov 14.
An efficient and sensitive analytical method for simultaneous determination of trace amounts of a new insecticide broflanilide and its metabolites (S(PFH-OH)-8007 and DM-8007) residues in five typical Chinese soils (red soil, black soil, fluvo-aquic soil, cinnamon soil and paddy soil) was developed. The samples were prepared by a modified quick, easy, cheap, effective, rugged, and safe method. The determination of broflanilide and its metabolites was conducted by ultra high performance liquid chromatography with tandem mass spectrometry with an electrospray ionization source in the positive ion mode. This is the first report for the determination of broflanilide and its metabolites in different soils. Broflanilide and its metabolites were extracted from all soils with acetonitrile and purified by a mixture of primary secondary amine and graphitized carbon black. The average recoveries of the three compounds in five types of soil ranged from 85.3 to 111.8% and the relative standard deviations were less than 13.6%. The limit of quantification was 0.1 μg/kg for all three compounds. This method was successfully used to determine broflanilide and its metabolites in five types of soil. The method was validated to be simple and effective for the determination of trace residual broflanilide and its metabolites in five types of soil.
建立了一种同时测定 5 种典型中国土壤（红壤、黑土、潮土、黄棕壤和水稻土）中痕量新型杀虫剂溴氟虫酰胺及其代谢物（S(PFH-OH)-8007 和 DM-8007）残留量的高效、灵敏分析方法。样品采用改良的快速、简便、廉价、有效、耐用和安全方法进行制备。采用电喷雾源正离子模式的超高效液相色谱-串联质谱法对溴氟虫酰胺及其代谢物进行测定。这是首次报道在不同土壤中测定溴氟虫酰胺及其代谢物。溴氟虫酰胺及其代谢物用乙腈从所有土壤中提取，并用伯仲胺和石墨化炭黑的混合物进行净化。在 5 种类型的土壤中，这 3 种化合物的平均回收率在 85.3%至 111.8%之间，相对标准偏差均小于 13.6%。所有 3 种化合物的定量限均为 0.1 μg/kg。该方法成功地用于测定 5 种土壤中的溴氟虫酰胺及其代谢物。该方法简单有效，可用于测定 5 种土壤中痕量残留的溴氟虫酰胺及其代谢物。
