- 期刊
Solid-phase Extraction for the Determination of Caffeine in Traditional Chinese Medicinal Prescriptions Containing Theae Folium by High Performance Liquid Chromatography
並列摘要
A high performance liquid chromatographic method in combination with C-18 reverse phase solid-phase extraction (SPE) was developed for determination of caffeine (CA) in traditional Chinese medicinal prescriptions which contain Theae folium. The frequently used prescriptions include Shin-Yi-San, Chuan-Chyong-Char-Tyau-San, Tsang-Eel-San, San-Hwang-Shyr-Gau-Tang, Tzy-Shenn-Ming-Mu-Tang and Shiang-Chyong-San. The present HPLC system uses a Merck RP-select B column by isocratic elution with methanol and 1% (v/v) acetic acid (1:4) as the mobile phase and detected at UV 270 nm. 8-Chlorotheophylline was used as an internal standard. The extracts of prescriptions were treated by Supelclean LC-18 SPE tube for eliminating interferences. Blank decoctions of each prescription were also examined as a test for interferences. The recoveries of caffeine from the Chinese medicinal prescriptions ranged from 88.5 to 92.3%. The relative standard deviations of caffeine ranged between 0.86 and 1.97% (intraday) and 1.04 and 3.90% (interday). The contents of caffeine in standard decoctions ranged from 13.98 to 19.62 mg g^(-1). © 1999 Elsevier Science B.V. All rights reserved.
延伸閱讀
- 夏嘉勇、詹雅慧、張毅偉、陳瑋芸、曾素香（2013）。Simultaneous Determination of a β-carotene, Lutein, Lycopene and Zeaxanthin in Tablets and Capsules Products Using High Performance Liquid Chromatography Method。臺灣農業化學與食品科學，51(2)，51-58。https://doi.org/10.6578/TJACFS.2013.007
- 顧祐瑞、蔡明哲、溫國慶（1996）。Determination of Aminitrozole, Metronidazole, Ornidazole and Tinidazole Adulterated in Traditional Chinese Medicine by High Performance Liquid Chromatography。藥物食品分析，4(2)，141-148。https://www.airitilibrary.com/Article/Detail?DocID=10219498-199606-4-2-141-148-a
- Wen, K. C., Huang, C. Y., & Lu, F. L. (1993). Determination of Baicalin and Puerarin in Traditional Chinese Medicinal Preparations by high-performance Liquid Chromatography. 藥物食品檢驗局調查研究年報, (), 42-52. https://doi.org/10.6946/ASRNL.199309.0042
- 張沅琦、李春香、徐廷光、莊清堯（1987）。Simultaneous Determination of Pheniramine Maleate, Chlorpheniramine Maleate, Carbinoxamine Maleate, Pyrilamine Maleate and Caffeine Anhydrous by Gas Liquid Chromatography。藥物食品檢驗局調查研究年報，()，73-78。https://doi.org/10.6946/ASRNL.198709.0073
- 劉芳淑、林隆達、溫國慶（1993）。Determination of Paeoniflorin and Geniposide in Traditional Chinese Medicinal Preparation by High Performance Liquid Chromatography。藥物食品分析，1(2)，191-198。https://www.airitilibrary.com/Article/Detail?DocID=10219498-199305-1-2-191-198-a