摘要
将溶胶-凝胶技术应用于SPME固相涂层的制备，涂制的端羟基-聚二甲基硅氧烷固相涂层热稳定性好，萃取时间和解吸时间短，对极性化合物及非极性化合物均有较强的萃取富集能力。扫描电镜图显示涂层表面为多孔结构。采用该涂层的SPME方法在对环境样品的分析中获得了令人满意的效果。
In this paper, the recent development and applications of solid-phase microextraction (SPME) are summed up. A sol-gel method was applied for the preparation of solid phase coating in SPME. The exposed outer surface was coated with hydroxy-terminated poly (dimethylsiloxane). The characteristics of this solid phase were evaluated. The coating possesses higher thermal stability, and shorter extraction and desorption time. This solid phase appears to have strong affinity to both polar compounds and non-polar compounds.The scanning electron micrograph of the coated surface presents a porous structure. In the analyses of the environmental samples, ideal results were also obtained.
出处
《色谱》
CAS
CSCD
北大核心
1999年第3期280-283,共4页
Chinese Journal of Chromatography
关键词
固相微萃取
溶胶-凝胶法
固相涂层
制品
solid-phase microextraction, sol-gel method, solid phase coating
