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Tropical Journal of Pharmaceutical Research
Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
ISSN: 1596-5996 EISSN: 1596-5996
Vol. 12, No. 3, 2013, pp. 413-418
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Bioline Code: pr13048
Full paper language: English
Document type: Research Article
Document available free of charge
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Tropical Journal of Pharmaceutical Research, Vol. 12, No. 3, 2013, pp. 413-418
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Simultaneous Determination of Co-formulated Matrine and Secnidazole in Suppositories by Reverse Phase High Performance Liquid Chromatography
Lv, Haixia; Ma, Suying; Wang, Xiao & Shang, Xiaojun
Abstract
Purpose: To develop and validate a new, simple, sensitive and accurate high performance liquid chromatographic (HPLC) method for the simulataneous determination of matrine and secnidazole in suppositories.
Methods: The method involved using a SinoChoom ODS-BP C18 column (5 μm, 4.6 mm × 200 mm) and mobile phase consisting of acetonitrile–triethylamine (0.05 %) in 0.025 mol/L KH2PO4 (20:80, v/v). The flow rate was 1 mL/min and detection was monitored at 210 and 311 nm for matrine and secnidazole, respectively. Total run time was 10 min and the column was maintained at 35 °C.
Results: The excipients in the suppository did not interfere with the drug peaks. Matrine was eluted at a retention time (RT) of 4.30 min while linearity for the quantification of drug was obtained in the concentration range of 10.0 - 100.0 μg/mL (r2 = 0.9991). Secnidazole was eluted at a retention time (tr) of 6.69 min and linearity for the quantification of the drug was obtained in the concentration range of 10.0 - 150.0 μg/mL (r2 = 0.9993). Intra- and inter-day variations were < 1.0 % for both matrine and secnidazole.
Conclusion: The developed HPLC method was validated according to International Conference on Harmonisation (ICH) guidelines and proved to be suitable for the simultaneous determination of matrine and secnidazole in suppositories.
Keywords
Assay; HPLC; Matrine; Secnidazole; Suppository
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