化工环保2023，Vol.43Issue(6)：857-863,7.DOI:10.3969/j.issn.1006-1878.2023.06.020
工业废水中砷元素两种测定方法的不确定度评定
Evaluating uncertainty for two determination methods of arsenic in industrial wastewater
李贵森1
作者信息
- 1. 福建省电子信息(集团)有限责任公司,福建福州 350005
- 折叠
摘要
Abstract
The content of As in industrial wastewater was determined by inductively coupled plasma optical emission spectrometry(ICP-OES)and atomic fluorescence spectrometry(AFS),the sources of uncertainty in the determination process of the two methods were analyzed,and the uncertainty components were quantified and synthesized.The results show that:When ICP-OES method is used to determine the industrial wastewater with 41.20 μg/L of As mass concentration,the extended uncertainty is 5.20 μg/L,and the As mass concentration is expressed as(41.20±5.20)μg/L(k=2);When AFS method is used to determine the industrial wastewater with 4.21 μg/L of As mass concentration,the extended uncertainty is 0.48 μg/L,and the As mass concentration is expressed as(4.21±0.48)μg/L(k=2);Standard curve fitting is the main source of uncertainty of the two methods;Standard solution preparation is one of the main factors affecting the uncertainty of ICP-OES method;The sample pre-treatment process is an important factor affecting the uncertainty of AFS method.关键词
工业废水/电感耦合等离子体发射光谱法(ICP-OES)/原子荧光光谱法(AFS)/不确定度评定/砷元素Key words
industrial wastewater/inductively coupled plasma optical emission spectrometry(ICP-OES)/atomic fluorescence spectrometry(AFS)/evaluating uncertainty/arsenic分类
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李贵森..工业废水中砷元素两种测定方法的不确定度评定[J].化工环保,2023,43(6):857-863,7.
