摘要
本文研究了冷原子吸收法测定天然气中汞的适宜条件，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分析测定汞的方法． ＲＳＤ＜ ５％，方法具有简便，快速，避免汞的挥发损失的特点，用于实际测定，得到满意结果。
The authors set up the procedures to determin the trace total mercury in gas by cold vapor atomic absorption 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 ranges and the relative standard deviation were 91. 3 % to 98. 0 % and less than 5 %. The method is simple and accurate, the results were shown to be satisfactory.
出处
《现代科学仪器》
1999年第4期51-52,共2页
Modern Scientific Instruments
关键词
汞
冷原子吸收
光谱法
天然气
微波溶样
测定
cold vapor atomic absorption spectrometry, natural gas, Hg, microwave oven digestion
