摘要
研制了石墨型碳素基体固相微萃取吸附质，并以该新型固相微萃取装置联用气相色谱电子捕获检测器分析水体中的有机农药。考察了吸附萃取时间及离子强度对分析结果的影响，并与商品装置进行了对比，结果表明其具有很好的应用前景。
The parameters governing solid\|phase microextraction have been investigated, and the development of carbonaceous adsorbent for SPME is presented because it is durable and inexpensive. The time profile curves were determined for several organic pesticides having a wide range of water solubilities and the effect of salt was also investigated. The method of SPME\|GC\|ECD to analyse trace level of the organic pesticide in water is established by the determination of optimum parameters. The comparison with commercial SPME device shows that the carbonaceous adsorbent having been treated with physical or chemical method for SPME can get lower limits of detection than polyacrylate and polydimethylsiloxane, although there are still some work to be done to improve its precision. The results shows that this new SPME device has great application potential.
出处
《色谱》
CAS
CSCD
北大核心
1999年第5期453-455,共3页
Chinese Journal of Chromatography
基金
云南省应用基础基金
关键词
气相色谱
碳素基体
吸附质
样品制备
gas chromatography, extraction method, carbonaceous adsorbent, solid\|phase microextraction, water analysis, organic pesticide
