| 饮用水中超痕量镉的蒸气发生：原子荧光光谱法测定 |
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| 引用本文： | 郭小伟,郭旭明.饮用水中超痕量镉的蒸气发生：原子荧光光谱法测定[J].上海环境科学,1994,13(9):12-14. |
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| 作者姓名： | 郭小伟 郭旭明 |
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| 作者单位： | 西北有色地质研究所，西北有色地质研究所 西安 710054，西安 710054 |
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| 摘 要： | 研究了在特制测Ｃｄ固体试剂存在的水溶液中，Ｃｄ与ＫＢＨ４反应生成挥发性物种，以无色散原子荧光光谱法测定饮用水中超痕量Ｃｄ的分析方法，ＣＤＳＲ－１能巧妙地调节反应体系的ＰＨ值，使其达到最佳测定ＰＨ范围，且能提高挥发性物种发生率，方法的灵敏度可提高１－２数量级，方法线性范围为０－５μｇ／Ｌ，最低检出浓度为０．０８μｇ／Ｌ；精密度实验的变异系数为１．３％；回收率为９３．０％－１０６．０％。
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| 关 键 词： | 水质分析 饮用水 蒸气发生法 原子荧光光谱法 镉 |
Determination of Ultra-trace Cadmium in Drinking Water by Vapour Generation-Atomic Fluorescence Spectrometry |
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| Guo Xiaowei Guo Xuming.Determination of Ultra-trace Cadmium in Drinking Water by Vapour Generation-Atomic Fluorescence Spectrometry[J].Shanghai Environmental Science,1994,13(9):12-14. |
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| Authors: | Guo Xiaowei Guo Xuming |
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| Abstract: | Adding a new reagent (CDSR-1) to aqueous solution, a volatile cadmium compound could be generated by reacting with sodium tetrahydroborate at room temperature. The detection limit of nondispersive atomic fluorescence spectrometry with argon-hydrogen mini-flame and heated quartz atomizer was 0.08mg/ml (36', 0.8ml sample volume), and the RSD was 1.3% (5ng/ ml, Cd, n=12). This method has been proved to be reliable, sensitive and rapid, its relative sensitivity was comparable with that of the graphite furnace AAS method. |
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| Keywords: | Cadmim Vapour generation Non-dispersive atomic fluorescence spectrometry Drinking water |
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