原子荧光法测定水中砷监测质量控制指标研究  

The Quality Control Index on the AFS Method for the Analysis of As in Water

作　　者：彭刚华 袁元 樊孝俊 夏新[4] 鹿海峰[5] 王迎[6] 关玉春[6] 米方卓[4] 

机构地区：[1]江西省环境监测中心站,江西南昌330029 [2]景德镇市环境监测站,江西景德镇333000 [3]南昌市环境监测站,江西南昌330002 [4]中国环境监测总站,北京100012 [5]北京市环境保护监测中心,北京100048 [6]天津市环境监测中心,天津300191

出　　处：《中国环境监测》2012年第4期124-126,共3页Environmental Monitoring in China

基　　金：环境保护行业公益性科研项目(200809140)

摘　　要：通过全国多家实验室测定的大量监测数据研究了原子荧光法测定水中砷的质量控制指标,并与《水和废水监测分析方法》(第4版)中的相关指标进行了比较,旨在为环境监测工作提供质量控制依据和质量控制指标。研究表明,标准样品实验室内相对偏差的控制范围为小于等于4%;浓度小于0.05 mg/L的实际样品的相对偏差小于等于10%,浓度大于等于0.05 mg/L时相对偏差小于等于5%。实验室间相对偏差的控制范围为小于等于10%。相对误差一般控制在±15%以内,加标回收率为90%～110%。On the basis of a large number of monitoring data from many laboratories nationwidely,studied the quality control index of the As and compared with the QC index in＂monitoring method of water and wastewater＂.The purpose of which was to provide an QC index for the people in the monitoring area.Studies indicate that the RSD（within-laboratory relative standard deviation）control limit of standard samples was less than 4.0%,relative deviation of actual samples which concentration below 0.05 mg/L was less than 10%,and the concentration above 0.05 mg/L was less than 5%.RSD′（inter-laboratory relative standard deviation）was less than 10%.The relative error of the standard samples was controded within ±15%.The correspounding recovery rates can be ranged between 90% and 110%.

关 键 词：原子荧光法 砷 质量控制指标 

分 类 号：X830.2[环境科学与工程—环境工程] X84