Abstract
This study presents a cyclodextrin-modified micellar electrokinetic chromatography (CD-MEKC) technique with a multi-wavelength detection method to determine specific components in Kuei-chih-tang. Kuei-chih-tang, a Chinese medicinal preparation, is composed of five crude herbs, i.e., Cinnamomi ramulus, Paeoniae radix, Glycyrrhizae radix, Zingiberis rhizoma and Zizyphi fructus. The effects of SDS and γ-cyclodextrin on the analytes' migration behavior were examined. The selected components were successfully separated within 10 min using a pH 10.0 borax-NaOH buffer containing 20 mM SDS and 2 mM γ-cyclodextrin. The correlation coefficients of the linear calibration graphs for the analytes exceeded 0.993. Moreover, the optimized CD-MEKC method was employed to analyze four different Kuei-chih-tang samples.
Original language | English |
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Pages (from-to) | 267-274 |
Number of pages | 8 |
Journal | Journal of Chromatography A |
Volume | 771 |
Issue number | 1-2 |
DOIs | |
State | Published - 30 May 1997 |
Keywords
- Cinnamaldehyde
- Cinnamic acid
- Gingerol
- Glycyrrhizin
- Kuei-chih-tang
- Paeoniflorin
- Pharmaceutical analysis