共沉淀富集-FAAS测定饮用水中铅和镉的含量

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中文摘要：本文采用火焰原子吸收光谱法测定饮用水中铅和镉的含量.结果表明,Pb含量在 0～0.020 mg·L-1线性关系良好,相关系数(R2)为 0.999 2,最低检测浓度为 0.004 mg·L-1;Cd含量在 0～0.010 mg·L-1 线性关系良好,相关系数(R2)为 0.999 3,最低检测浓度为 0.002 mg·L-1.两种元素重复测定的相对标准偏差在 7.0%～8.8%,加标回收率在 95.0%～103.8%.该方法操作简便,测定结果稳定,适用于饮用水中铅和镉含量的测定.

外文标题：Determination of Lead and Cadmium Content in Potable Water by FAAS with Coprecipitation Concentration

外文摘要：The content of lead and cadmium in drinking water was determined by flame atomic absorption spectrometry.The results showed that the linear relationship between Pb content in the range of 0～0.020 mg·L-1 was good,the correlation coefficient(R2)was 0.999 2,and the lowest detection concentration was 0.004 mg·L-1.The linear relationship between Cd content in the range of 0～0.010 mg·L-1 was good,the correlation coefficient(R2)was 0.999 3,and the lowest detection concentration was 0.002 mg·L-1.The relative standard deviations of the two elements were 7.0%～8.8%,and the recoveries were 95.0%～103.8%.The method is simple and stable,and is suitable for the determination of lead and cadmium in drinking water.

外文关键词：

coprecipitationpotable waterleadcadmium

作者：

闫月娥

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作者单位：

攀枝花学院国家钒钛检测重点实验室钒钛资源综合利用四川省重点实验室,四川攀枝花 617000

关键词：

共沉淀饮用水铅镉

出版年：

2024

DOI：