YANG Qing, GUO Yan-rong, CHEN Ying, et al. Simultaneous Determination of Ephedrine Hydrochloride and Dexamethasone Sodium Phosphate in Compound Baifu Pellicles by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(3): 29-31.
YANG Qing, GUO Yan-rong, CHEN Ying, et al. Simultaneous Determination of Ephedrine Hydrochloride and Dexamethasone Sodium Phosphate in Compound Baifu Pellicles by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(3): 29-31.DOI:
Objective: To develop an HPLC method for the determination of ephedrine hydrochloride and dexamethasone sodium phosphate in Compound Baifu Pellicles. Methods: Analysis was conducted on a XTerra RP18 radial compression column with a mobile phase of methanol-0.34%KH2PO4 solution-triethylamine (52 ∶48 ∶0.2). Results: The linear range of ephedrine hydrochloride was 8.032~80.32 μg·mL-1(r=0.999 9)
and the average recovery was 99.25%(RSD=1.10%
n=6);The linear range of dexamethasone sodium phosphate was 3.984~39.84 μg·mL-1(r=0.999 9)
and the average recovery was 98.10%(RSD=1.32%
n=6). Conclusion :This method was simple and feasible for the quality control of Compound Baifu Pellicles.