YANG Lian-ju, FENG Xue-feng, XU Zi-fang, et al. Study on the Content of Zinc Oxide in Mayinglong Hemorrhoids Ointment by Ultraviolet-visible Spectrophotometry[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(21): 60-62.
YANG Lian-ju, FENG Xue-feng, XU Zi-fang, et al. Study on the Content of Zinc Oxide in Mayinglong Hemorrhoids Ointment by Ultraviolet-visible Spectrophotometry[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(21): 60-62.DOI:
Objective: To establish the method of determining zinc oxide content in Mayinglong Hemorrhoids Ointment by UV-VIS spectrophotometry. Method: The contents of zinc oxide in 3 batches of this preparation were determined by UV-VIS spectrophotometry. Chromogenic method of zinc reagent was used. Result: This method is higher sensitivity than titration. Conclusion: The UV-VIS spectrophotometry method is suitable for the determination of zinc oxide in this preparation.