地下水中有机氯农药测量方法准确度的平衡均匀水平试验  

A Balanced Uniform-Level Experiment for the Accuracy of Organochlorine Pesticides Measurement Method in Groundwater

作　　者：李松[1] 饶竹[1] 郑雅莉 郭晓辰[1] 

机构地区：[1]国家地质实验测试中心,北京100037 [2]河北省环境地质勘查院,河北石家庄050021

出　　处：《岩矿测试》2012年第2期342-349,共8页Rock and Mineral Analysis

基　　金：中国地质大调查项目(1212010816028);国家地质实验测试中心基本科研业务费专项经费(1J0601850)

摘　　要：采用5个浓度水平样品通过7家实验室进行协同评定试验,验证了地下水中六氯苯、α-HCH、β-HCH、γ-HCH、δ-HCH、p,p'-DDE、p,p'-DDD、o,p'-DDT、p,p'-DDT有机氯农药分析方法的稳定性与准确性。测量结果经一致性和离群值检验表明,地下水中9种有机氯农药组分在3.00～56.5 ng/L浓度水平范围内,重复性标准差为0.50～0.77 ng/L,再现性标准差为1.92～3.03 ng/L,单个样品中的2,4,5,6-四氯间二甲苯和二丁基氯菌酸酯替代物质量监控指标回收率分别为58.8%～99.5%和79.2%～117%。检测方法准确、可靠。The stability and accuracy of the measurement method for hexachlorobenzene,α-HCH,β-HCH,γ-HCH,δ-HCH,p,p′-DDE,p,p′-DDD,o,p′-DDT and p,p′-DDT in groundwater has been determined by a balanced uniform-level experiment for 5 different content level samples from 7 laboratories.After being verified for consistency and outliers,the statistical results of 9 organochlorine pesticides in groundwater indicated that the repeatability standard deviation was 0.50-0.77 ng/L and the reproducibility standard deviation was 1.92-3.03 ng/L within a level range of 3.00-56.5 ng/L.The recovery rates of surrogates for 2,4,5,6-tetrachloro-m-xylene and dibutyl chlorendate were 58.8%-99.5% and 79.2%-117%,respectively.The detection method was accurate and reliable.

关 键 词：地下水 有机氯农药 协同试验 平衡均匀水平试验 精密度 

分 类 号：S482.32[农业科学—农药学] O213.1[农业科学—植物保护]