固相微萃取/GC直接测定废水中的三种氯酚  

Determination of Chlorophenols in Waste Water Using Direct Solid Phase Microextraction/GC

作　　者：张红雨 张杰 黄秀华 

机构地区：[1]国家城市供水水质监测网武汉监测站,武汉430034

出　　处：《分析科学学报》2002年第5期421-423,共3页Journal of Analytical Science

摘　　要：研究了运用固相微萃取 / GC直接测定水中的三种氯酚的方法 ,得到了分析三种氯酚的 SPME最佳萃取条件。选取聚丙烯酸酯 ( PA)萃取头 ,水溶液调 p H=2 ,并用 Na Cl饱和 ,室温下在持续磁力搅拌下直接萃取 40 min,纤维萃取头在 2 60℃脱附 5min。所建立的方法适于快速、方便地测定水中三种氯酚 。A simple method was described combining direct solid phase microextraction(SPME) and GC/ECD for the determination of chlorophenol compounds in water. The operating conditions of SPME have been studied. The optimization condition was obtained. Analytes were extracted by a 85 μm polyacrylate coated fiber and directly sampled in the water sample with the extraction period of 40 min with magic stiring and desorption time of 5 min at 260℃. Acidification by hydrochloric acid(pH=2) and saturated salt were necessary for the best sensitivity. This method was fast, simple, preconcentration-free, and was suitable for detecting chlorophenols in water sample.

关 键 词：直接测定 固相微萃取 GC 氯酚 废水 气相色谱 

分 类 号：X132[环境科学与工程—环境科学] X832.02