利用溶胶-凝胶(SOl-gEl)技术制备固相微萃取(SPME)涂层材料。通过硅醇盐前驱体与涂层聚合物羟基硅油(OH-TSO)的水解共聚的方法,成功地制备了聚二甲基硅氧烷SOl-gEl涂层的SPME萃取头,并以农药的混合标准水溶液为研究对象,用直接-固相微萃取-气相色谱法(gC)对涂层的性能进行考察,制成的萃取头适用于多种农药残留的萃取分离分析。A sol-gel material was successfully applied to preparing a novel coating as a precursor for solid phase microextraction(SPME).A homemade fiber based on solgel polydimethylsiloxane(PDMS) SPME coating was prepared by hydrolysis of alkoxide precursors and subsequent polycondensation with OH-TSO.The characteristics of the new coating were investigated by the analysis of pesticide standard solution mixture in conjunction with gas chromatograph(GC).The proposed fiber presented a wide linear range for target analytes,and exhibited high sensitivity and high thermal stability in applications.福建省自然科学基金(2006J0393);福建省科技计划重点(2007Y0032)项目;福建省南平市科技计划(N2006Z01-1)项目资
