A simple, specific, and precise RP-HPLC method with photodiode-array detection has been developed for simultaneous analysis of the quinazoline alkaloids vasicine and vasicinone, pharmacologically important constituents of Adhatoda vasica. The compounds were separated by use of 0.1% trifluoroacetic acid in water:acetonitrile 90:10 as isocratic mobile phase at a flow rate of 1.0 mL min−1. Under these conditions, plots of integrated peak area against concentration were linear over the ranges 0.05–10.0 μg mL−1 and 0.5–100.0 μg mL−1 (r2 = 0.999 and 0.998) for vasicine and vasicinone, respectively. Mean recovery was 99.06% for vasicine and 98.69% for vasicinone. The method is therefore suitable for routine analysis of vasicine and vasicinone in Adhatoda vasica plants of different varieties and in herbal medicinal products prepared from the plants.
[1]. The Ayurvedic Pharmacopoeia of India, 1st Edition, Part I, Vol I, published by Government of India, Ministry of Health and Family Welfare, Department of Health, 1998, p, 122.
[2]. K.M. Nadkarni 1976 Indian Materia Medica, With Ayurvedic, Unani-Tibbi, Siddha, Allopathic, Homeopathic, Naturopathic and Home Remedies, Appendices and Indexes Popular Prakashan Bombay 40–43.
[3]. R.N. Chopra S.L. Nayar I.C. Chopra 1956 Glossary of Indian Medicinal Plants CSIR Publications New Delhi 7.
[4]. C.K. Atal 1980 Chemistry and pharmacology of vasicine: A New Oxytocic and Abortifacient Raj Bandhau Industria Co. New Delhi 8.
[5]. O.P. Gupta M.L. Sharma B.J.R. Ghattak C.K. Atal 1977 Ind. J. Med. Res. 66 680–691.
[6]. A.H. Amin D.R. Mehta 1959 Nature 184 1317.
[7]. D.B.A. Narayana S. Agarwal S.K. Luthra N. Srinivas 1995 Indian Drugs 32 583–586.
[8]. I. Laakso P. Virkajarvi H. Airaksinen E. Varis 1990 J. Chromatogr. 505 424–428.
[9]. S.K. Chauhan G.P. Kimothi B.P. Singh S. Agrawal 1999 Ind. J. Nat. Prod. 15 21–24.
[10]. S. Shaifali R.K. Verma M.M. Gupta S.C. Singh K. Sushil S. Srivastava S. Kumar 2001 J. Liq. Chromatogr. Relat. Technol. 24 153–159.
[11]. K. Parikh V. Doshi J. Salunkhe R. Kamat 1989 Indian Drugs 27 64–70.
[12]. K.R. Brain B.B. Thapa 1983 J. Chromatogr. 258 183–188.
[13]. B.S. Joshi Y. Bai M.S. Puar K.K. Dubose S.W. Pelletier 1994 J. Nat. Prod. Res. 57 953–962.