原子荧光法测定土壤中砷的质量控制评价标准研究  

Study of Evaluation Standards of Quality Control of As in Soil by Atomic Fluorescence Spectrometry

作　　者：夏新[1] 陈纯 米方卓[1] 吴晓凤[1] 柴文轩 王宇游[3] 

机构地区：[1]中国环境监测总站国家环境保护环境监测质量控制重点实验室,北京100012 [2]河南省环境监测中心,河南郑州450004 [3]北京科技大学,北京100083

出　　处：《中国环境监测》2015年第3期19-23,共5页Environmental Monitoring in China

基　　金：环保公益性行业科研专项(200809140)

摘　　要：组织多家实验室开展监测，研究了原子荧光法测定土壤中砷的质量控制措施及其评价标准。研究表明，RSD、RD、RSD′,RD′、RE和加标回收率是土壤监测的重要质量控制措施，对于标准样品，其评价标准分别为RSD≤10％、RD≤30％、RSD′≤20％、RD′≤30％、RE≤±20％、空白加标回收率为95％－105％、标准样品加标回收率为75％～110％；其与两个土壤标准样品系列、与土壤中砷的浓度均没有显著的相关性。For analyzing As in soil by atomic fluorescence spectrometry, QC and evaluation standards have been studied by using the monitoring data of many laboratories. There was no significant correlation between such quality control indicators as RSD, RD, RSD, RD, RE, recovery and two standard soil sample series and the concentration of As in soil. It is proposed to control RSD ≤10% ,RD ≤ 30% , RSD′≤ 20% , RD′≤ 30% , RE ≤ ±20% , blankreeoveriesin 95% -105% , and the recovery of standard samples in 75%-110%.

关 键 词：原子荧光法 砷 质量控制评价标准 

分 类 号：X830.5[环境科学与工程—环境工程]