利用大口径毛细柱气相色谱法检测水中三氯甲烷和四氯化碳

摘要

利用大口径毛细柱气相色谱/电子捕获检测器(GC/ECD)气液平衡法测定饮用水中的三氯甲烷和四氯化碳。此方法简便、快速、灵敏度高，并具有较好的精密度与准确度。样品加标回收率为86%～102%，精密度为0.9%～1.8%。%The volatile CHCl3 and CCl4 in drinking water have beendetermined by wide bore capillary gas chromatography/electron capture detector (GC/ECD) with gas-liquid balance method. The method is simple, fast and highly sensitive. It has better accuracy and precision. The standard recovery range from 86% to 102%. And the precisions range from 0.9% to 1.8%.