摘要
研究了用固相萃取-GC/MS法测定水中痕量氯苯类有机污染物。通过实验比较了Heaion GDX-403柱、Heaion C18柱、Agilent C18柱,Supelco C18柱对氯苯类萃取效果的影响,优化了水样pH值、水样流速、穿透体积、洗脱溶剂、洗脱体积、洗脱速率等萃取条件。在最佳萃取和测定条件下,方法的线性范围为0.1～800μg/L,检出限(S/N=3)为0.03～0.5μg/L。用本方法测定了实际样品,结果令人满意。
A method for determination of chlorobenzene in water by solid-phase extraction with GC-MS detection was investigated. The extraction efficiency of chlorobenzene on Heaion GDX-403 column, Heaion C18 column, Agilent C18 column and Supelco C18 column were compared. Experimental parameters influencing the performance of extraction, such as the pH value of water sample, load speed, breakthrough volume, eluting solvent, eluting volume, eluting rate, etc. were optimized. Under the optimized conditions, the linear range was 0.1-800μg/L and the detection limits （S/N=3） was 0.03-0.1μg/L. Real sample was successfully analyzed using this method.
出处
《现代科学仪器》
2009年第6期77-79,87,共4页
Modern Scientific Instruments
基金
苏州市社会发展基金项目(SS0734)
