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摘要: |
用GB2449-92规定的二乙基二硫代氨基甲酸解光度法测定硫磺中的砷含量,并对测定方法进行了改进,减少了工作曲线中砷标准溶液取样量,将砷的最小检知量由GB2449-92规定的w=0.000%降低到w=0.00001%取得了较好的效果。 |
关键词: 硫磺 砷含量 检测 光度法 最小检知量 |
DOI: |
分类号:TQ125.11 |
基金项目: |
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Determination of Low Concentration Arsenic in Sulfur. |
Zhou Lin Pu Changsheng Zhang Bing et al.
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Abstract: |
Using Ag(DDTC) spectrophotometry regulated in GB2449-92, low concentration arsenic in sulfur is determined.The method of GB2449-92 is improved by reducing the sample volumes of standard solution of arsenic for calibration curve,and obtained the result of |
Key words: sulfur,concentration of arsenic,determination,spectrophotometry,minimum detectable concentration, |