文献类型：期刊文献

中文题名：玉米中氯氰菊酯、溴氰菊酯SPE净化及不确定度分析

英文题名：Purification of Permethrin and Deltamethrin in Maize by SPE and Evaluation of Uncertainty

作者：方学智[1] 费学谦[1] 丁明[1] 姚小华[1]

第一作者：方学智

机构：[1]中国林科院亚热带林业研究所

年份：2009

卷号：48

期号：2

起止页码：127-129

中文期刊名：农药

外文期刊名：Agrochemicals

收录：CSTPCD;;北大核心:【北大核心2008】；

语种：中文

中文关键词：SPE净化;氯氰菊酯;溴氰菊酯;不确定度;玉米

外文关键词：SPE; permethrin; deltamethrin; uncertainty; maize

分类号：TQ450.2

摘要：应用SPE净化代替GB/T5009.146-2003的传统净化法,并对其玉米中氯氰菊酯、溴氰菊酯测定数据的不确定度进行了分析。研究结果表明:用15mL石油醚/乙酸乙酯(体积比95∶5)淋洗氯氰菊酯和溴氰菊酯的回收率最高,分别达到了102.07%和80.86%,且在0.005～1mg/L之间具有0.995以上相关性。通过对应用SPE测定的不确定分析,氯氰菊酯和溴氰菊酯都具有较小的不确定度,分别为1.86%和1.91%,其不确定的主要来源为标准溶液的配制和样品的称量、定容。
Solid phase extraction （SPE） technology was applied to substitute for the traditional glass chromatographic clean method in GB/T 5009.146-2003, and uncertainty of permethrin and deltamethrin in maize was evaluated as well. Results are as following： the optimal eluting volume was 15 mL petroleum ether and ethyl acetate （95：5, by vol） through elution curve, the recovery was 102.07 and 80.86% respectively. The linear ranges of standard curve were between 0.005-1 mg/L, R〉0.995. After calculated, we got the uncertainty of permethrin and deltamethrin, they were 1.86 and 1.91%, the main factors of uncertainty in this method were from dilution of standard solution and weighting of samples.