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采用液上气相色谱法测定盐酸溶液中乙炔和氯乙烯含量 ,使用氢氧化钠将试样中的氯化氢中和为盐 ,从而消除其在气相色谱分析乙炔和氯乙烯中的影响 .液上平衡温度为 3 5℃ ,平衡时间为 1h ,色谱柱为 2m× 3mmi·d· ,内填GDX - 2 0 2的锈钢柱 ,柱温 1 40℃ .气体进行量为 1mL .以外标法定量 ,乙炔试验结果的相对标准偏差为 0 .85 %,在 3 0 0～ 1 5 0 μg/g范围内 ,回收率为 98.9%～ 1 0 3 %.氯乙烯试验结果的相对标准偏差为 1 .4%,在 2 0 0～ 1 0 0 μg/g范围内 ,回收率为98 8%～ 1 0 2 %.
Determination of acetylene and vinyl chloride content in hydrochloric acid solution by liquid chromatography on the gas, the use of sodium hydroxide to neutralize the sample of hydrogen chloride as salt, thereby eliminating the gas chromatographic analysis of acetylene and vinyl chloride impact on liquid equilibrium temperature The equilibrium time was 1h, the column was 2m × 3mmi · d ·, and the column was filled with GDX-202 stainless steel column at a column temperature of 1 40 ℃ .The gas volume was 1mL.According to the external standard method, The relative standard deviations of the test results were 0.85%, and the recoveries ranged from 98.9% to 103% over the range of 3000 to 150 μg / g.The relative standard deviation of the results of the vinyl chloride test was 1.4% , The recoveries ranged from 98 8% to 102% in the range of 200 ~ 100 μg / g.