| 原子吸收光谱法测PM2.5中的镉和铅 |
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| 引用本文： | 李卉颖,李昕馨. 原子吸收光谱法测PM2.5中的镉和铅[J]. 沈阳大学学报：自然科学版, 2014, 0(1): 38-41 |
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| 作者姓名： | 李卉颖 李昕馨 |
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| 作者单位： | 沈阳大学环境学院,辽宁沈阳110044 |
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| 基金项目： | 国家十一五重大科技专项课题资助项目（2011BAJ061300-1）. |
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| 摘 要： | 论述了大气污染中PM2．5颗粒物的危害，通过筛选样品采用了HNO3＋H2O2＋HF消解体系，建立了测定PM2．5中镉、铅的原子吸收光谱法．测试结果表明，Cd和Pb两种金属的检出限分别为0．00601μg／L、0．0600μg／L；线性相关系数R〉0．999，线性关系良好；RSD≤2．1％，仪器精密度良好；实际样品加标回收率Cd为91．4％，Pb为86．0％．该方法简单、方便、可靠，测试成本较低，适合测定PM2．5中的镉、铅．
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| 关 键 词： | 微波消解 原子吸收 PM2 5 金属元素 颗粒物 |
Determination of Cadmium and Plumbum in PM2. 5 by Atomic Absorption Spectrometry |
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| Li Huiying,Li Xinxin. Determination of Cadmium and Plumbum in PM2. 5 by Atomic Absorption Spectrometry[J]. Journal of Shenyang University, 2014, 0(1): 38-41 |
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| Authors: | Li Huiying Li Xinxin |
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| Affiliation: | (School of Environmental Science, Shenyang University, Shenyang, 110044, China) |
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| Abstract: | The hazards of particulate matter PM2. 5 in air pollution are discussed. The sample was dissolved by microwave digestion with HNO3-/-H2O2 ＋HF, and then atomic absorption spectrometry was used for determining the elements. The results indicate that the detection limits of cadmium and plumbum were 0. 006 0 μg/L and 0. 060 0μg/L, the linear relationship （R〉0. 999） and precision （RSD≤2. 1%） was well, the recovery rate of cadmium and plumbum was 91. 4% and 86%, respectively. This method is simple, convenient, reliable and low test cost, and it can be used for determining cadmium and plumbum in PM2. 5. |
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| Keywords: | microwave digestion atomic absorption PM2. 5 metal elements particulate matter |
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