Simultaneous Determination of 9 Components in Huoxiang Zhengqi Oral Liquid by HPLC / 中国药房

OBJECTIVE： To establish a method for simultaneous determination of nine components in Huoxiang zhengqi oral liquid， and to improve and perfect the quality standard of Huoxiang zhengqi oral liquid. METHODS： The contents of nine components in 10 batches of Huoxiang zhengqi oral liquid were determined by HPLC， such as licorice coumarin， isorlicin， liquiritinapioside， narirutin， liquiritin， saponins， hesperidin， magnolol and honokiol. The determination was performed on Kromasil Eternity XT-5-C18 column with mobile phase consisted of acetonitrile-0.05％ phosphoric acid solution （gradient elution） at the flow rate of 1 mL/min. The detection wavelength was set at 220 nm， and column temperature was 25 ℃. The sample size was 10 μL. RESULTS： The linear range of licorice coumarin， isorlicin， liquiritinapioside， narirutin， liquiritin， saponins， hesperidin， magnolol and honokiolin were 0.000 5-0.007 5， 0.000 8-0.025 0， 0.006 1-0.976 0， 0.001 6-0.250 0， 0.007 8-0.025 0， 0.000 4- 0.062 7， 0.008 6-0.276 0， 0.010 0-0.500 0， 0.010 0-0.500 0 mg/mL （r＝0.999 2-1.000 0）. The detection limits were 0.001 3， 0.000 1， 0.004 7， 0.005 0， 0.012 0， 0.001 3， 0.007 8， 0.007 7 0， 0.005 8 μg/mL， and the quantitative limits were 0.013 0， 0.000 8， 0.047 0， 0.050 0， 0.120 0， 0.013 0， 0.078 0， 0.070 0， 0.058 0 μg/mL， respectively； RSD of precision， stability and repeatability tests were less than 3.0％ （n＝6）. Average recovery rates were 98.67％， 101.85％， 98.97％， 103.05％， 100.00％， 97.78％， 97.91％， 100.13％， 101.95％； RSDs were 1.14％， 2.18％， 0.40％， 0.17％， 1.38％， 0.85％， 1.38％， 0.10％， 1.35％ （n＝6）. CONCLUSIONS： The established method is accurate and reliable， which can provide reference for the establishment of the overall quality control evaluation system and the improvement of quality standard for Huoxiang zhengqi oral liquid.

Study on adsorptive properties of spherical activated carbon on several kinds of active ingredient from Chinese materia medica / 中草药

ObjectTo study the adsorptive properties of spherical activated carbon on some effective ingredients from Chinese materia medica (CMM) and to approach the application feasibility to CMM purification. Methods The spherical activated carbon with high strength has been successfully prepared by the carbonation and activation of polymeric resin. The apparent and theoretical adsorption capacities under the condition of static operation were investigated by Langmuir monolayer adsorption model. Elution by 75% alcohol was studied. Results The static adsorption capacities of the berberine hydrochloride and dioscin were 35.46 mg/g and 47.12 mg/g, and theoretical adsorption capacities were 96.16 mg/g and 102.04 mg/g, respectively. The apparent adsorption amount of rutin was 40.88% mg/g. The elution ratio were 83.71%, 91.45%, and 87.69%, respectively. Conclusion The spherical activated carbon adsorbent shows better comprehensive adsorption properties and can be used to purification.