ABSTRACT
OBJECTIVE:To optimize the flash extraction technology for Guizhi fuling capsule. METHODS:Using blade speed,liquid-solid ratio,extraction time as investigation factors,using the comprehensive evaluation values consisting of transfer rates of gallic acid,paeoniflorin,benzoic acid,cinnamic acid,benzoyl paeoniflorin,amygdalin as investigation index,single fac-tor test was combined with Box-Behnken design-response surface method to optimize the flash extraction technology for Guizhi ful-ing capsule. Verification test was conducted and compared with conventional decoction extraction method(extracting twice,totally 240 min). RESULTS:The optimal flash extraction technology for Guizhi fuling capsule was using water as extraction solvent with blade speed of 5600 r/min and liquid-solid ratio of 10.5:1,extracting for 60 s. The average comprehensive evaluation value of veri-fication test was 85.40%(n=3),with relative error of 0.15% to the predicted value(85.55%),higher than decoction extraction method(72.65%). CONCLUSIONS:Optimized flash extraction technology for Guizhi fuling capsule is efficient and rapid.
ABSTRACT
This study was aimed to develop an HPLC method for the determination of hesperidin,magnolol,honoki-oland liquiritin in Soft Capsule Jia-Wei Huo-Xiang Zheng-Qi (JWHXZQ). AKromasil C18 column (250 mmí4.6 mm, 5 μm) was used with water-methanol as mobile phasegradient elution. The flow rate was 1.0 mL·min-1, and the de-tecting wavelength was at 287 nm. The results showed that the linearity ranges ofhesperidin,magnolol,honokioland liquiritinwere 4.47-178.70 μg·mL-1, 3.42-136.96 μg·mL-1, 3.49-139.48 μg·mL-1, 3.92-157.20 μg·mL-1, respec-tively (r>0.999). The average recoveries of them were 99.48%, 99.05%, 99.57% and 99.79%, respectively. It was concluded that the method was accurate, sensitive and specific for quality control of Soft Capsule JWHXZQ.
ABSTRACT
Objective To establish the method for the content determination of sinomenine in Qiwei Tongbi oral liquid. Methods Sinomenine ofQiwei Tongbi oral liquid was determined by HPLC, with the column being Waters XTerra column temperature setting at 25℃, flow rate being 1.0 ml/min, and the detective wavelength being 262 nm. Results There was a good linearity of sinomenine in the range of 0.248～2.480 μg, and the average recovery was 98.82% with RSD of 0.13%. Conclusion This method was simple, accurate, reproducible, and thus could be used for quality control of Qiwei Tongbi oral liquid.