土壤中环氧氯丙烷的测定与验证分析  

Determination and Validation Analysis of Epichlorohydrin in Soil

作　　者：张杰 刘瑞[1,2] 赖华杰 Zhang Jie;Liu Rui;Lai Huajie(CAS Testing Technical Services(Guangzhou)Co.,Ltd.,Guangzhou 510650;Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China)

机构地区：[1]中科检测技术服务(广州)股份有限公司,广东广州510650 [2]中国科学院广州化学研究所,广东广州510650

出　　处：《广东化工》2021年第10期344-346,共3页Guangdong Chemical Industry

摘　　要：建立了一种利用顶空/气相色谱质谱联用法测定土壤中的环氧氯丙烷,并开展了验证分析。结果表明,该方法的MDL、MQDL分别为0.0353、0.141 mg/kg;实验室A(B)低、高浓度样品的加标回收率分别为82%(90%)、80%(84%),RSD分别为6.6%(8.8%)、2.2%(3.2%),实验室间低、高浓度样品加标回收率分别为86%、82%,RSDAB分别为9.2%、6.0%,均符合相关标准要求。同时本方法低、高浓度样检测值的极差均小于重复性限(0.0952、0.197mg/kg)和再现性限(0.121、0.230mg/kg)。因此,本方法的MDL,精密度和准确度验证均合格,可用于测定土壤中的环氧氯丙烷。A method for the determination of epichlorohydrin in soil by headspace/gas chromatography-mass spectrometry was established and was verified to affirm its applicability.The results revealed that the MDL and MQDL by this method were 0.0353 and 0.141 mg/kg,respectively.The recoveries of low and high spiked samples in Lab A(B)were 82%(90%)and 80%(84%),with RSD of 6.6%(8.8%)and 2.2%(3.2%),respectively.The p AB of low,high spiked samples were 86%,82%,with RSDAB of 9.2%and 6.0%,respectively,which were accorded with relevant standard requirements.Meanwhile,the ranges of the low and high spiked samples were lower than the repeatability limits(0.0952,0.197 mg/kg)and the reproducibility limits(0.121,0.230 mg/kg),respectively.Therefore,the verification of MDL,precision and accuracy are all qualified,and can be used for the determination of epichlorohydrin in soil.

关 键 词：HS/GCMS 环氧氯丙烷 MDL MQDL 重复性 再现性 

分 类 号：TQ[化学工程]