天然气中微量总汞的分析测定  

Determination of Trace total Mercury in Natural Gas by Cold Vapor Absorption Spectrometry

作　　者：丁辉[1] 宋薇[1] 吴坚[1] 汪正范[1] 

机构地区：[1]北京市理化分析测试中心,中国计量科学研究院北京100089

出　　处：《现代科学仪器》2000年第2期22-24,共3页Modern Scientific Instruments

摘　　要：本文采用碘 -活性碳吸附管收集天然气管道中的汞 ,然后用微波消解法溶样 ,再用冷原子吸收光谱法及原子荧光光谱法分析测定汞 RSD <5 % ,方法具有简便 ,快速 ,避免汞挥发损失的特点 ,用于实际测定 。The authors set up the procedures to determine the trace total mercury in gas by cold vapor atomic absorption spectrometry and atomic fluorescence spectrometry. Sampling mercury from natural gas with I-active carbon, and the microwave oven digestion system is used for dissolution of the samples. The recovery and the relative standard deviation were 91% to 98% and less than 5% respectively. The method is simple, rapid, sensitive and accurate, the results were shown to be satisfactory.

关 键 词：汞 原子吸收光谱法 天然气 微波溶样 测定 

分 类 号：TE642[石油与天然气工程—油气加工工程]