Application of Ceramic Carbon Materials for Solid-Phase Extraction of Organic Compounds

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• 作者：Lihong Shi ; Xiaoqing Liu ; Haijuan Li ; Wenxin Niu ; and Guobao Xu
• 刊名：Analytical Chemistry
• 出版年：2006
• 出版时间：February 15, 2006
• 年：2006
• 卷：78
• 期：4
• 页码：1345 - 1348
• 全文大小：67K
• 年卷期：v.78,no.4(February 15, 2006)
• ISSN：1520-6882

文摘

Ceramic carbon materials were developed as new sorbents for solid-phase extraction of organic compoundsusing chlorpromazine as a representative. The macroporosity and heterogeneity of ceramic carbon materials allowextracting a large amount of chlorpromazine over a shorttime. Thus, the highly sensitive and selective determination of chlorpromazine in urine sample was achieved bydifferential pulse voltammograms after only 1-min extraction. The total analysis time was less than 3 min. Incomparison with other electrochemical and electrochemiluminescent methods following 1-min extraction, theproposed method improved sensitivity by about 2 and 1order of magnitude, respectively. The fast extraction,diversity, and conductivity of ceramic carbon materialsmake them promising sorbents for various solid-phaseextractions, such as solid-phase microextraction, thin-filmmicroextraction, and electrochemically controlled solid-phase extraction. The preliminary applications of ceramiccarbon materials in chromatography were also studied.