摘要
本文报道了在SpherisorbC_(18)柱上,以甲醇-KH_2PO_4-Na_2PO_4缓冲溶液(pH8.2)作流动相,同时分离和测定黄嘌呤、鸟嘌呤、腺嘌呤、茶碱和咖啡因。并用于饮料中咖啡因的测定,检出限为μg/L级。标准加入回收率在95.6~105.0%。
This paper reports the separation and de-termination of xanthine,guanine,3denine,theophylline and caffeine on a Spherisorb C_(18)column with CH_3OH-KH_2PO_4-Na_2HPO_4 buffersolution(PH=8.2)as a mobile phase,Thismethod was used for the determination of caf-feine in beverages. The detection limit is ofμg/L level and 95.6~105.0%recoveries wereobtained.
出处
《分析试验室》
CAS
CSCD
北大核心
1996年第3期15-18,共4页
Chinese Journal of Analysis Laboratory
基金
湖北省自然科学基金