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火焰原子吸收法测定水中铁的质量控制指标研究
引用本文:夏新,米方卓,康长安,李茜,彭刚华.火焰原子吸收法测定水中铁的质量控制指标研究[J].四川环境,2011,30(3):16-19.
作者姓名:夏新  米方卓  康长安  李茜  彭刚华
作者单位:1. 中国环境监测总站,北京,100012
2. 江西省环境监测中心站,南昌,330029
基金项目:环保公益性行业科研专项项目
摘    要:本文研究了火焰原子吸收法测定水中铁的质量控制指标,全国共12个省份的46家实验室参加测定工作,提供了具有全国性指导意义的工作参考数据.研究结果为:标准样品在0.2~4.0mg/L浓度范围内的RSD≤3.0%,RSD'≤10.0%,室间标准偏差≤0.10mg/L;浓度≤2.0mg/L时,RE≤±10.0%,2.0~4.0...

关 键 词:  火焰原子吸收法  质量控制指标

Indexes of Quality Control for Flame Atomic Absorption Spectrometry to Determine Iron in Water
XIA Xin,MI Fang-zhuo,KANG Chang-an,LI Qian,PENG Gang-hua.Indexes of Quality Control for Flame Atomic Absorption Spectrometry to Determine Iron in Water[J].Sichuan Environment,2011,30(3):16-19.
Authors:XIA Xin  MI Fang-zhuo  KANG Chang-an  LI Qian  PENG Gang-hua
Institution:1.China National Environmental Monitoring Center,Beijing 100012,China;2.Jiangxi Provincial Environmental Monitoring Center,Nanchang 330029,China)
Abstract:On the basis of large amount of monitoring data collected from 46 laboratories in 12 provinces of the country,indexes of quality control for determination of Iron in water by Flame Atomic Absorption Spectrometry were studied in this paper,which provided data as references for directing nation wide works in this field.The result concluded that when the concentration of standard samples ranged in 0.2~4.0mg/L,we had RSD≤3.0%,RSD' ≤10.0%,interlaboratory standard deviation ≤ 0.10mg/L.When the concentration ≤ 2.0mg/L and ranging in 2.0~4.0mg/L,we had RE≤±10.0% or RE≤±6.0% respectively.The concentration of real samples ranged in 0.05~0.8 mg/L with RD≤5.0%.The blank spiking recoveries were 95%~100%.The spiking recoveries of standard samples and real samples were 100%~115%.Additionally,the repeatability and reproducibility were studied as well.
Keywords:Iron  flame atomic absorption spectrometry  index of quality control
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