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0.200 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%。
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%.
出处
《环境监测管理与技术》
2012年第5期58-60,共3页
The Administration and Technique of Environmental Monitoring
基金
2009年度国家环境保护标准制修订基金资助项目(1067)
关键词
铍
氯化钯
微波消解
石墨炉原子吸收法
土壤
沉积物
Beryllium
Palladium chloride
Microwave digestion
Graphite furnace atomic absorptionmethod
Soils
Sediments
