Combined Determination of Succinic Acid and Cetylpyridinium Chloride in Medicinal Films by Gradient High Performance Liquid Chromatography

Dvorskaya O. N.
Doctor of Pharmacy, Assistant Professor, Head, Chair for Pharmacy and Chemistiry, Faculty of Pharmacy¹

Nozhkina N. N.
Senior Lecturer, Chair for Pharmacy and Chemistiry, Faculty of Pharmacy¹

1 - South-Ural State Medical University, Chelyabinsk, Russia

Dvorskaya Oksana, e-mail: dvoksnik@gmail.com

The study had no sponsorship.

None declared.

A technique has been developed based on reversed-phase high-performance liquid chromatography with diode-matrix detection for the joint determination of succinic acid and cetylpyridinium chloride in complex action medicinal films. Efficient chromatographic separation of active drug components was achieved in a gradient elution mode on a Luna C18 (2) 100A column (4.6 × 250 mm, 5 µm) using a mobile phase consisting of a 0.1% solution of phosphoric acid and acetonitrile. The detection wavelength was 210 nm for both compounds. The developed method is validated in terms of specificity, linearity, precision, accuracy and can be used to determine the authenticity and quantitative content of succinic acid and cetylpyridinium chloride in the joint presence in assessing the quality of medicinal films.

medicinal films, succinic acid, cetylpyridinium chloride, high performance liquid chromatography, gradient elution

10.29234/2308-9113-2021-9-2-75-88

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