摘要: |
研究了硝酸-双氧水体系消解、石墨炉原子吸收法测定环境空气中锡的方法。采用抗坏血酸和磷酸二氢铵作混合基体改进剂,热解涂层石墨管,塞曼扣背景。 |
关键词: 环境空气 锡 石墨炉原子吸收法 |
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Graphite Furnace Atomic Absorption Spectroscopy Determination of Tin in Environmental Air |
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Abstract: |
The GFAAS method for Tin determination from environmental air samples has been studied with HNO3 and H2O2 digestion. Mercury metal solution and ammonium phosphate monobasic solution were used as the matrix modifier for coating graphite tube. The detection limit of this method was 3.56μg/ L (in solution) . and the relative recovery rate for spikes in soil matrices varied among 90.6 %~102 %. |
Key words: environmental air tin graphite furnace atomic absorption spectroscopy |