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| 石墨炉原子吸收法测定空气中的铍及其化合物 |
| A Method for Determination of Beryllium and Its Compounds in Air by GFAAS |
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| DOI： |
| 中文关键词: 铍 石墨炉原子吸收法 硝酸镁 空气 |
| 英文关键词: Beryllium GFAAS Magnesium nitrate Air |
| 基金项目:污染控制与资源化研究国家重点实验室开放课题基金资助项目（PCRRF09011） |
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| 中文摘要: |
| 采用石墨炉原子吸收法测定铍及其化合物，用微孔滤膜采集空气样品，经硝酸/高氯酸混合液消解，以硝酸镁为基体改进剂。方法线性范围为0.100 μg/L～3.00 μg/L，最低检出质量浓度为1.7×10-5 mg/m3（按采样体积75 L计），3个加标质量水平的相对标准偏差为3.8%～4.5%，回收率为93%～102%。 |
| 英文摘要: |
| A method for determination of beryllium and its compounds in the air was established by using GFAAS. Air samples were collected by microporous filtering film which digested by perchloric acid nitric acid with magnesium nitrate as matrix modifier. Calibration curves of the method exhibited linearity in a range between 0.100 μg/L and 3.00 μg/L. Detection limit was 1.7×10-5 mg/m3 (sampling volume 75 liters). RSD of 3 levels spiked samples ranged from 3.8% to 4.5%. The recoveries ranged from 93% to 102%. |
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