稳健统计-迭代法在环境样品中四种阴离子测定不确定度评估中的应用  

Evaluation on uncertainty of four anion in environment-related samples by robust statistics iterative method

作　　者：王红伟[1] 林少彬[1] 丁昌明[1] 

机构地区：[1]中国疾病预防控制中心环境与健康相关产品安全所,北京100021

出　　处：《环境与健康杂志》2017年第5期433-435,共3页Journal of Environment and Health

基　　金：科技部科技基础性工作专项(SQ2013FY3610001-3)

摘　　要：目的探讨稳健统计-迭代法在环境样品中四种阴离子测定不确定度评估中的应用。方法对水中氟化物、氯化物、硝酸盐、硫酸盐四种阴离子的质控样品的检测数据进行不确定度评估。结果使用稳健统计-迭代法评估的不确定度和相对标准偏差都与质控样品的结果基本一致。结论该方法适用于环境样品中四种阴离子测定不确定度的评估。Objective To explore the evaluation on uncertainty of determination of four anions in environment-related samples by robust statistics-iterative method. Methods The quality control samples＇ data for fluoride, chloride, nitrate, sulfate anion were collected for uncertainty evaluation by robust statistics-iterative method. Results Based on robust statistics-iterative methods, the uncertainty and relative standard deviation were basically consistent with the results of quality control samples.Conclusion The robust statistics-iterative method is suitable for uncertainty evaluation on determination of four anions in environment-related samples.

关 键 词：稳健统计-迭代法 不确定度评估 阴离子 

分 类 号：O657[理学—分析化学]