Simultaneous determination of ephedrine hydrochloride and pseudoephedrine hydrochloride in Maxing oral solution by HPLC
doi: 10.3969/j.issn.1006-0111.2015.05.017
- Received Date: 2014-10-13
- Rev Recd Date: 2015-01-13
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Key words:
- Maxing oral solution /
- ephedrine hydrochloride /
- pseudoephedrine hydrochloride /
- HPLC
Abstract: Objective To establish an HPLC method for determination of ephedrine hydrochloride and pseudoephedrine hydrochloride in Maxing oral solution. Methods Phenomenex Hydro-RP (250 mm×4.6 mm, 4 μm) was adopted. Acetonitnile (A) and 0.1% phosphonic acid solution (0.1% triethanolamine solution)(B) was used as gradient mobile phase(0-20 min, 3%→10% A)at flow rate was 1.0 ml/min and the program of UV gradient absorbance detection was 210 nm. The sample volume was 20 μl. Results A good linearity was obtained over the concentration range of 0.99-39.6 μg/ml for ephedrine hydrochloride (r=0.999 9) and 1.09-43.6 μg/ml for pseudoephedrine hydrochloride (r=0.999 9). The average recovery of ephedrine hydrochloride was 101.5% with RSD of 1.77% (n=6), and the average recovery of pseudoephedrine hydrochloride was 100.8% with RSD of 1.96% (n=6). Conclusion This method was simple,accurate and quick,which could be used for determination and quality control of Maxing oral solution with good selectivity and repeatability.
Citation: | ZHANG Minxin, HUANG Aiwen, SONG Hongtao. Simultaneous determination of ephedrine hydrochloride and pseudoephedrine hydrochloride in Maxing oral solution by HPLC[J]. Journal of Pharmaceutical Practice and Service, 2015, 33(5): 445-447. doi: 10.3969/j.issn.1006-0111.2015.05.017 |