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| 微波消解石墨炉原子吸收法测定土壤和沉积物中的铍 |
| Determination of Beryllium in Soil and Sediment by GFAAS with Microwave Digestion |
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| DOI： |
| 中文关键词: 铍 氯化钯 微波消解 石墨炉原子吸收法 土壤 沉积物 |
| 英文关键词: Beryllium Palladium chloride Microwave digestion Graphite furnace atomic absorption method Soils Sediments |
| 基金项目:2009年度国家环境保护标准制修订基金资助项目（1067） |
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| 中文摘要: |
| 以氯化钯为基体改进剂，采用微波消解石墨炉原子吸收法测定土壤和沉积物中的铍，优化了微波消解条件，考察了共存元素对测定的干扰。方法在0 μg/L～4.00 μg/L范围内线性良好，检出限为0.01 μg/g（以取样质量0.200 0 g、定容体积50 mL计），标准样品平行测定的RSD为3.5%～6.7%，实际样品的加标回收率为84.0%～113%。 |
| 英文摘要: |
| Beryllium concentrations in soils and sediments were determined by GFAAS with microwave digestion using palladium chloride as matrix modifier. Conditions of microwave digestion were optimized to remove coexisting element interference in the determination. Calibration curves of the method exhibited linearity in a range between 0 μg/L and 4.00 μg/L. Detection limit was 0.01 μg/g (sample quality 0.200 0 g, sample solution volume 50 mL). The RSD of duplicated samples ranged from 3.5% to 6.7%. Spiked recoveries of samples ranged from 84.0% to 113%. |
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