| 微波消解石墨炉原子吸收法测定土壤和沉积物中的铍 |
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| 引用本文： | 任兰,杨正标.微波消解石墨炉原子吸收法测定土壤和沉积物中的铍[J].环境监测管理与技术,2012,24(5):58-60. |
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| 作者姓名： | 任兰 杨正标 |
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| 作者单位： | 南京市环境监测中心站,江苏南京210013 |
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| 基金项目： | 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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| 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0μg／L～4．00μg／L范围内线性良好，检出限为0．01μg／g（以取样质量0．2000g、定容体积50mL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％。
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| 关 键 词： | 铍 氯化钯 微波消解 石墨炉原子吸收法 土壤 沉积物 |
Determination of Beryllium in Soil and Sediment by GFAAS with Microwave Digestion |
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| REN Lan,YANG Zheng-biao.Determination of Beryllium in Soil and Sediment by GFAAS with Microwave Digestion[J].The Administration and Technique of Environmental Monitoring,2012,24(5):58-60. |
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| Authors: | REN Lan YANG Zheng-biao |
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| Institution: | ( Nanjing Environmental Monitoring Center, Nanjing, Jiangsu 210013, China) |
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| Abstract: | Beryllium concentrations in soils and sediments were determined by GFAAS with microwave di- gestion using palladium chloride as matrix modifier. Conditions of microwave digestion were optimized to remove coexisting elemeflt 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 solu- tion 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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| Keywords: | Beryllium Palladium chloride Microwave digestion Graphite furnace atomic absorptionmethod Soils Sediments |
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