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

作　　者：郭瑞娣[1] 刘华良[1] 

机构地区：[1]江苏省疾病预防控制中心理化检验所,江苏南京210009

出　　处：《环境监测管理与技术》2012年第5期53-54,63,共3页The Administration and Technique of Environmental Monitoring

基　　金：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)

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0.100μg/L～3.00μg/L,最低检出质量浓度为1.7×10-5mg/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%。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 be- tween 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%.

关 键 词：铍 石墨炉原子吸收法 硝酸镁 空气 

分 类 号：O657.31[理学—分析化学]