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| 微波消解-原子荧光光谱法测定大气PM2.5中的砷 |
| Determination of Arsenic in Atmospheric Fine Particulates PM2.5by Microwave Digestion and Atomic Fluorescence Spectroscopy |
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| DOI： |
| 中文关键词: 砷 微波消解 原子荧光光谱法 细颗粒物 |
| 英文关键词: Arsenic Atomic fluorescence spectroscopy Microwave digestion PM2.5 |
| 基金项目: |
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| 中文摘要: |
| 采用微波消解-原子荧光光谱法测定大气细颗粒物中的砷，确定了最佳样品处理方法与测定条件。方法在0 μg/L～40.0 μg/L范围内线性良好，标准曲线相关系数达0.999以上，检出限为0.01 μg/L。土壤标准品的测定值在标准值范围内，大气PM2.5滤膜样品加标回收率为96.0%～102%，5次平行测定的RSD为1.5%～3.6%。 |
| 英文摘要: |
| Samples of atmospheric fine particulates was digested by microwave，and arsenic was determined by hydride generation atomic fluorescence spectroscopy (AFS). The experimental conditions for treating and analyzing samples were optimized． The correlation coefficient of standard curve could reach more than 0.999 between 0 μg/L～40.0 μg/L, and the detection limit was 0.01 μg/L．The analysis results of national soil standard materials were all within standard value ranges. The recovery rate of standard addition in the sample was in the range of 96% to 102%.RSD of result by the five parallel determination was 1.5% to 3.6%. |
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