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| 金膜吸附-冷原子吸收光谱法测定空气中的汞 |
| Determination of Mercury in Air by Gold Film Adsorption Cold Atomic Absorption Spectrophotometry |
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| DOI： |
| 中文关键词: 汞 金膜吸附 冷原子吸收光谱法 空气 |
| 英文关键词: Mercury Gold film adsorption Cold atomic absorption spectrophotometry Air |
| 基金项目:国家自然科学基金资助项目（51079028）；973计划课题基金资助项目（2010CB951102）；上海市自然科学基金资助项目（10ZR1400300） |
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| 中文摘要: |
| 采用新型金膜吸附-冷原子吸收光谱法测定空气中的汞，在0 μg/L～100 μg/L范围内线性良好，相关系数为0.999 1。方法检出限为1.6 ng/m3，RSD为0.5%～2.7%，测定两种不同浓度的汞标准样品，相对误差为6.1%和3.2%。与两种现行国标方法（巯基棉富集和高锰酸钾溶液吸附法）比较，该方法所需试剂种类少，操作简便、吸附效率好，加标回收率高。 |
| 英文摘要: |
| The new type of gold film adsorption cold atomic absorption spectrophotometric method was adopted to determine mercury in air. Good linearity was obtained within the concentration scope of 0 μg/L～100 μg/L, with the correlation coefficient 0.999 1. The detection limit come to be 1.6 ng/m3, with the RSDs ranged from 0.5% to 2.7%. Relative errors were 6.1% and 3.2% respectively when two different concentrations of mercury standard samples were determined by the current method. Compared this method and the two kinds of the current national standard method (Enrichment of sulfhydryl cotton and potassium permanganate solution absorption method), this method needs less kinds of agents and is easy to handle. Meanwhile, this method show high adsorption efficiency and high spiked recoveries. |
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