摘要
本文介绍了顶空气相色谱法测定醇醚硫酸中1，4-二烷含量的测试方法。对顶空气相色谱法的主要条件、油浴温度、平衡时间、液上压力及气液体积比进行了讨论，确立了最佳测试条件。采用顶空法测定醇醚硫酸盐中的1，4-二烷可得平均回收率为98％，方法的精密度为3．2％。此方法适用于中控和成品分析。
Headspace gas chromatographic procedure was described for the determination of 1, 4 dloxane in alcohol ether sulfate. The main conditions, such as temperature for oil bath, balance time, pressure for up-liquid and ratio for gas via liquid were discussed the optimum conditions were established. The average recovery of 1,4-dioxane was 98%. The relative average deviation was less than 3. 2%. This method is feasible for the process control and final products.
关键词
二恶烷
醇醚硫酸盐
顶空气相色谱法
1, 4-dioxane, alcohol ether sulfate, headspace gas chromatography
