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微波消解石墨炉原子吸收法测定工业废气中铍及其化合物
引用本文:张,峰.微波消解石墨炉原子吸收法测定工业废气中铍及其化合物[J].干旱环境监测,2014(1):1-3.
作者姓名:  
作者单位:江苏康达检测技术有限公司,江苏南京215001
摘    要:采用玻璃纤维滤筒采集工业废气中铍及其化合物,硝酸-氢氟酸混酸体系微波消解滤筒、硝酸镁一硝酸混合液作为基体改进剂,石墨炉原子吸收法测定铍。本方法前处理操作过程简单、省时、酸用量少、环境污染小,方法的灵敏度和准确度都有很大的提高。当采样体积为30L,工业废气中铍的最低检出质量浓度为1×10μmg/m^3。

关 键 词:工业废气  铍及其化合物  微波消解  石墨炉原子吸收法

Determination of Beryllium in industrial Waste Gas by Microwave Assisted Digestion with Graphite Furnace Atomic Absorption Spectrometry
ZHANG Feng.Determination of Beryllium in industrial Waste Gas by Microwave Assisted Digestion with Graphite Furnace Atomic Absorption Spectrometry[J].Arid Environmental Monitoring,2014(1):1-3.
Authors:ZHANG Feng
Institution:ZHANG Feng (Jiangsu Kangda detection technology Limited,Nanjing Jiangsu 215001, China)
Abstract:A method for determination beryllium and its compounds of industrial waste gas by microwave - assisted digestion with graphite furnace atomic absorption spectrometry was reported in this paper. Beryllium and its compounds of industrial waste gas were collected by glass fiber filter cartridge. Nitric acid and hydrofluoric acid mixed acid system was used to digested filter cartridge and magnesium nitrate and nitric acid mixed solution were used as matrix modifier. This method has the advan-tage of simple, time - saving, less acid consumption, little environmental pollution, and the sensitivity and accuracy are also greatly improved. Beryllium of industrial waste gas in the minimum detectable concentration is 1 × 10^-4 mg/m^-3 when the sampling volume is 30 L.
Keywords:industrial waste gas  beryllium and its compounds  microwave digestion  graphite furnace atomic absorptionspectrometry
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