用气相色谱法对甘油碳酸酯体系作定量分析

Quantitative analysis of glycerol carbonate system by gas chromatography.

考察了不同组成浓度下甲醇、缩水甘油、甘油和甘油碳酸酯体系相对校正因子的变化。实验证明,在低浓度下该体系的相对校正因子基本保持不变。采用合适的气相色谱条件,对该体系进行了定量分析。实验测定的低浓度缩水甘油、甘油和甘油碳酸酯的相对校正因子用于酯交换法合成甘油碳酸酯反应产物的定量分析有较好的准确性和重复性。此方法适用于低浓度下溶液的定量分析。

The relative mass correction factors of methyl alcohol, glycide, glycerol, and glycerol carbonate with different concentrations were investigated. It was shown that the relative correction/actors remained constant at low concentrations. The system was analyzed quantitatively by gas chromatography under suitable conditions. Using the relative correction factors obtained under low concentrations, quantitative analysis results had good accuracy and repeatability.