Journal Article

Simultaneous Determination of Vincristine, Vinblastine, Catharanthine, and Vindoline in Leaves of <i>Catharanthus roseus</i> by High-Performance Liquid Chromatography

M.M. Gupta, D.V. Singh, A.K. Tripathi, R. Pandey, R.K. Verma, S. Singh, A.K. Shasany and S.P.S. Khanuja

in Journal of Chromatographic Science

Volume 43, issue 9, pages 450-453
Published in print October 2005 | ISSN: 0021-9665
Published online October 2005 | e-ISSN: 1945-239X | DOI: http://dx.doi.org/10.1093/chromsci/43.9.450
Simultaneous Determination of Vincristine, Vinblastine, Catharanthine, and Vindoline in Leaves of Catharanthus roseus by High-Performance Liquid Chromatography

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A simple reversed-phase liquid chromatographic method is developed for the simultaneous quantitation of the anticancerous drugs vincristine, vinblastine, and their precursors catharanthine and vindoline using a Merck Chromolith Performance reversed-phase high-performance liquid chromatography column. A better resolution is obtained in comparison with available particulatetype C18 columns. The column provides good reproducibility and peak symmetry. Chromatography is carried isocratically with a mobile phase of acetonitrile-0.1M phosphate buffer containing 0.5% glacial acetic acid (21:79, v/v; pH 3.5) at a flow rate of 1.2 mL/min and UV detection at 254 nm. Parameters such as linearity, limits of quantitation (LOQ) and detection (LOD), precision, accuracy, recovery, and robustness are studied. The method is selective and linear for alkaloid concentration in the range 0.25 µg-25 µg/mL. The LOQ and LOD are 25, 46, 56, and 32 µg/mL and 8, 14, 18, and 10 µg/mL, respectively. The results of accuracy studies are good. Values for coefficient of variation are 2.50, 1.82, 1.33, and 1.13, respectively. The percent recovery of the alkaloids was found to be 96%, 97%, 98%, and 98%, respectively. Peak purity and homogeneity of these compounds in plant extract is studied using a photodiode-array detector. This simple and rapid method of analysis is applied for the determination of these alkaloids in a large number of leaf extracts of Catharanthus roseus.

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Subjects: Chemistry

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