摘要：用超臨界流體色譜法(SFC)測(cè)定茶葉中的，在二氧化碳流動(dòng)相中加入體積分?jǐn)?shù)為5％的甲醇后，得到了良好的分離效果該方法具有樣品前處理簡(jiǎn)單，共存組分不干擾測(cè)定，分析速度快等優(yōu)點(diǎn)，可以用于茶葉中的快速分析 關(guān)鍵詞：超臨界流體色譜；茶葉； 中圖分類號(hào)：0658 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：10008713(2002)01007503 Determination of Caffeine in Teas by Supercritical Fluid Chromatography GU0 Ya-dong (Department ofPharmacy，KunrningMedical College，Kunming650031，Ehirm) Abstract：A rapid supercridcal fluid chromatog raphic method for the determination of caffeine in tea is described．It is shown that a mobile phase of carbon dioxide，mod[fied with 5％ methanol achieved exedlent results．Themethodis simpleinthe samplepreparation．Othermmponents containedinthe sample do not interfere the measurement It can ha used to determ ine caffeine in tea rapidly． Key words：supercritical flu{d chromatography；tea；caffeine 固相萃取小柱