WU Jian, JI Ling, WANG Li-fang, et al. RP-HPLC with UV Switch Determination of Paeoniflorin and Pepper Alkali in Zhitong Tablets[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(15): 140-142.
WU Jian, JI Ling, WANG Li-fang, et al. RP-HPLC with UV Switch Determination of Paeoniflorin and Pepper Alkali in Zhitong Tablets[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(15): 140-142. DOI: 10.11653/syfj2013150140.
Objective: To establish a simultaneous determination method for paeoniflorin and pepper alkali in Zhitong Tablets. Method: The determination was performed on a Phenomsil ODS column with acetonitrile-0.1% phosphoric acid as the mobile phase. The detection wavelength was set at 230 nm (0-15 min
paeoniflorin) and 343 nm (15-30 min
pepper alkali). The flow rate was 1.0 mL·min-1. The column temperature was maintained at 30℃. Result: paeoniflorin presented a good linearity in the concentration range of 4.82-48.24 mg·L-1 (r=0.999 8). The average recovery rate was 100.59% with RSD 1.43% (n=6). Pepper alkali presented a good linearity in the concentration range of 2.51-25.12 mg·L-1 (r=0.999 7). The average recovery rate was 99.84% with RSD 1.45% (n=6). Conclusion: The method is simple
accurate and reproducible
it can be used as the basis for quality control of Zhitong Tablets.