文献类型：期刊文献

中文题名：气相色谱-串联质谱法测定花椒中氯菊酯的不确定度评定

英文题名：Uncertainty evaluation of permethrin in Zanthoxylum bungeanum based on gas chromatography-tandem mass spectrometry

作者：袁新跃[1] 胡丽霞[1] 印方平[1] 季昱[1] 周阳元[1] 沈丹玉[2]

第一作者：袁新跃

机构：[1]杭州市富阳区食品安全检验检测中心,浙江杭州311400;[2]中国林业科学研究院亚热带林业研究所,浙江杭州311400

年份：2021

卷号：47

期号：20

起止页码：291-296

中文期刊名：食品与发酵工业

外文期刊名：Food and Fermentation Industries

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：杭州市富阳区135人才项目。

语种：中文

中文关键词：气相色谱-串联质谱;花椒;氯菊酯;不确定度;评定

外文关键词：gas chromatography-tandem mass spectrometry;Zanthoxylum bungeanum;permethrin;uncertainty;evaluation

分类号：O657.63;TS264

摘要：该研究评定气相色谱-串联质谱法(gas chromatography-tandem mass spectrometry,GC-MS/MS)测定花椒中氯菊酯的不确定度。依据GB 23200.113—2018《食品安全国家标准植物源性食品中208种农药及其代谢物残留量的测定气相色谱-质谱联用法》对测定过程中可能产生的不确定度进行分析和计算,创建相应的不确定度数学模型,进而合成相对不确定度和扩展不确定度。结果表明,标准工作液配制和标准曲线拟合是GC-MS/MS法测定花椒中氯菊酯不确定度的主要来源,分析仪器和样品前处理过程是不确定度的次要来源。在GC-MS/MS法测定氯菊酯和其他拟除虫菊酯过程中,应规范标准溶液的配制,选取拟合线性高的标准曲线进行校正。
The uncertainty of determination of permethrin in Zanthoxylum bungeanum by gas chromatography-tandem mass spectrometry(GC-MS/MS)was evaluated.According to the national standard GB 23200.113—2018,the possible uncertainty in the determination process was analyzed and calculated,and the corresponding mathematical model of uncertainty was established.Then the relative uncertainty and expanded uncertainty were synthesized.The results showed that the preparation of the standard working solution and standard curve fitting were the main factor of uncertainty in the determination of permethrin in Zanthoxylum bungeanum by GC-MS/MS,while analytical instruments and sample pretreatment were the secondary factor of uncertainty.In the determination of permethrin and other pyrethroids by GC-MS/MS,the preparation of standard solution should be standardized,and the standard curve with high fitting linearity should be selected for correction.