ABSTRACT
[Objective] To develop an HPLC method for the determination of berberine hydrochloride in GuZheNing liniment.[Methods]The chromatographic system consisted of Dimonsil C18 column and mobile phase of acetonitrile—50mmol?L-1 sodium dihydrogen phosphate(adjusted PH to 2.5 with H3PO4)(25∶75).The flow rate was 1.0 mL?min-1,and the detective wavelength was at 348 nm.[Results]The calibration curve was linear in the range of 0.106～0.530 ?g(n=5).The method was proved to be repeatable with RSD 0.7%(n=6).4 batches of sample were analyzed and the Berberine Hydrochloride contents were 19.11,18.81,18.83,18.92mg/100mg,respectively.[Conclusion]The method is selective,simple and accurate,and could be used for the quality control of this preparation.
ABSTRACT
[Objective]To develop an HPLC method for the determination of berberine hydrochloride in GuZheNing liniment.[Methods]The chromatographic system consisted of Dimonsil C18 column and mobile phase of acetonitrile-50mmol?L-1 sodium dihydrogen phosphate(adjusted PH to 2.5 with H3PO4)(25:75).The flow rate was 1.0 mL?min-1,and the detective wavelength was at 348 nm.[Results]The calibration curve was linear in the range of 0.106～0.530 ?g(n=5).The method was proved to be repeatable with RSD 0.7%(n=6).4 batches of sample were analyzed and the Berberine Hydrochloride contents were 19.11,18.81,18.83,18.92mg/100mg,respectively.[Conclusion]The method is selective,simple and accurate,and could be used for the quality control of this preparation.
ABSTRACT
Object To develop a method for the determination of polysaccharide in TIANCI CAPSULE, which is a new drug dosage form containing the bouillon of fresh water mussels with immunopotentiating activity Methods Total polysaccharide was determined by phenol sulfuric acid method with glucose as the standard, and spectrophotometer assay absorbency at 490 nm Results The linear range of polysaccharide was 10～80 ?g/mL, r=0 999 7 The average recovery rate was 98 67% (n=5), RSD=2 58% Through sample assay, the content of polysaccharide was 267 7～300 6 mg in each TIANCI CAPSULE Conclusion The method is simple, rapid and reliable, and may be used for the quality control of this preparation
ABSTRACT
Object To optimize the conditions for the extraction of Panax notoginseng (Burk ) F H Chen Methods Conditions for the extraction were studied by orthogonal experimental design as guided by the content of total notoginseng saponin present in the extract Results Significant effect was observed in 3 different experimental conditions Conclusion The optimum condition for the extraction of P notoginseng was to soak the drug in 75% alcohol for 24 h and then percolate at a rate of 1~3 ml/min to collect an amount corresponding to about 10 times of the quantity of P notoginseng