摘要
为了解决快速、准确测定液化石油气中二甲醚含量的问题，本文旨在提出用气相色谱法测定液化石油气中二甲醚含量的方法。用填充柱气相色谱法测定液化石油气中二甲醚的添加量。柱长10m×4mm，热导池检测器，氢气做载气，归一法计算样品中二甲醚含量。样品五次测定的相对标准偏差在1．3％～8．0％之间，检出限0．1％。
In order to solve the problem of measuring dimethyl ether contents in LPG rapidly and accuratly, the paper proposes a new method of a gas chromatography. The method measured addition of dimethyl ether by packed column gas chromatography. The packed column 10m × 4mm, thermal conductivity detector and hydrogen carrier gas are used to determine the concentration of DME by normalization method. The relative standard devia- tion of five samples is between 1.3 -8. 0%, and the MDL is less than 0. 1%.
出处
《中国特种设备安全》
2010年第3期12-13,共2页
China Special Equipment Safety
关键词
钢瓶液化石油气
二甲醚热导检测器
气相色谱法
Liquid petroleum gas Dimethyl ether Thermal conductivity detector Gas chromatography
