摘要
目的建立饮用水中三氯甲烷和四氯化碳含量测定的方法。方法采用顶空气相色谱法,毛细管色谱柱为HP-5(30 m×0.32 mm,0.25μm),检测器为电子捕获检测器(ECD)。结果三氯甲烷在0~20μg·L-1,四氯化碳在0~10μg·L-1与峰面积线性关系良好,相关系数分别为0.9972、0.9953,平均回收率分别为97.2%、107.4%。结论该方法简便、快速、准确、专属性强、重现性好,能有效地控制饮用水中残留溶剂三氯甲烷和四氯化碳的含量。
Objective To establish a method for the determination of trichloromethane and carbon tetrachloride in drinking water by static headspace gas chromatography. Methods HP-5 capillary column （30 m×0.32 mm,0.25μm） and electron capture detector（ECD） were used. Results Trichloromethane and carbon tetrachloridewere completely separated and had good linear relationship at 0 - 20 μg·L-1 and 0 -- 10 μg·L-1 with the relative correlation of 0.9972 and 0.9953, and the average recovery were 97.2% and 107.4%, respectively. Conclusion The proposed method is simple, accurate, sensitive and suitable for the determination of trichloromethane and carbon tetrachloride in drinking water.
出处
《中南药学》
CAS
2018年第1期110-113,共4页
Central South Pharmacy
关键词
饮用水
顶空气相色谱法
三氯甲烷
四氯化碳
drinking water
static headspace gas chromatography
trichloromethane
carbon tetrachloride
