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| 超临界流体萃取和气相色谱／质谱法测定中国茶中咖啡因含量 | |
| 引用本文： | 邱涤非,肖晓瑶,李东. 超临界流体萃取和气相色谱／质谱法测定中国茶中咖啡因含量[J]. 色谱, 1995, 13(6): 450-452 |
| 作者姓名： | 邱涤非 肖晓瑶 李东 |
| 作者单位： | 湖南大学化学化工系，湖南大学环境工程系 |
| 摘 要： | 运用超临界流体萃取方法和气相色谱／质谱法联用，成功地测定了三种中国茶叶中咖啡因的含量。方法简便，灵敏度高，测定速度快。平均回收率为９８．１％。 |
| 关 键 词： | 超临界流体萃取 咖啡因 气相色谱／质谱法 中国茶 |
Determination of Caffeine in Chinese Tea by Supercritical Fluid Extraction(SFE)and Gas Chromatography/Mass Spectrometry |
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| Qiu Difei,Xiao Xiaoyao and Li Dong. Determination of Caffeine in Chinese Tea by Supercritical Fluid Extraction(SFE)and Gas Chromatography/Mass Spectrometry[J]. Chinese journal of chromatography, 1995, 13(6): 450-452 | |
| Authors: | Qiu Difei Xiao Xiaoyao Li Dong |
| Abstract: | rapid and simple supercritical fluid extraction procedure has been developed for the isolation of caffeinefrom Chinese tea. The caffeine was assayed by gas chromatography/mass spectrometry,The relative stan-dard deviations for the determination of three kinds of Chinese tea were 2.19%,2.20%,2.53%respectivelyand the recovery of caffeine was 98.1%. The SFE method is simple,accurate, reproducible and suitable forroutine analysis of tea and other caffeine products. |
| Keywords: | gas chromatography/mass spectrometry supercritical fluid extraction caffeine Chinese tea |
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