【摘要】 用顶空气相色谱法,选择了色谱固定相和实验条件,用国产高分子多孔小球GDX-103色谱柱测定脂肪醇聚氧乙烯醚(AEO)及其硫酸盐(AES)和含有AES的餐具洗涤剂中的1,4-二噁烷。结果表明:所测7个AEO样品中1,4-二噁烷的质量浓度小于2μg.mL-1;所测9个AES样品中1,4-二噁烷质量浓度为6.0μg.mL-1-928.3μg.mL-1;所测8个餐具洗涤剂样品中1,4-二噁烷质量浓度为2.9μg.mL-1-59.7μg.mL-1。该方法测定1,4-二噁烷的标准曲线的相关系数为0.999 9,检出限为0.3μg.mL-1。更多还原

【Abstract】 Headspace GC method was adopted to determine the content of 1,4-dioxane in AEO and AES surfactant products as well as dishwashing detergents containing AES.The fixed phase and operating were selected as polymer microsphere GDX-103 and the operating conditions were selected correspondingly.Results showed that in 7 samples of AEO product series,the mass fraction of 1,4-dioxane <2 μg· mL-1,in 9 samples of AES product series,the mass fraction of 1,4-dioxane is 6.0 μg·mL-1～928.3 μg·mL-1,in 8 samples of dishwashing detergents the mass fraction of 1,4-dioxane is 2.9 μg·mL-1～59.7 μg·mL-1.The correlation coefficient of the standard plot for determination of 1,4-dioxane by this method is 0.999 9 and the detection limit is 0.3 μg·mL-1.更多还原