ABSTRACT
Objective To study the quality control method for Chanshukang granule. Methods TLC and HPLC method were used to identify the Chinese herbal medicines. The determination was carried on HPLC, using Kromasil C18 column (200 mm?4.6 mm, 5 ?m), ethanol-2% glacial acetic acid (40∶60) as mobile phase and detected at the wavelength of 324 nm. Results The Chinese herbal medicines, Radix Angelicae Sinensis, Rhizoma Chuanxiong, Placenta Hominis and Radix Glycyrrhizae Preparata, in granules were identified by TLC. The calibration curve was linear in the range of 0.625～3.750 ?g for ferulic acid. The contents in three batches were 0.054%, 0.037%, 0.042% respectively. The average recovery was 96.2% and RSD=2.37%. Conclusion The TLC method can be used for the quality control of four herbal medicines in the granule. The HPLC method is simple, sensitive, accurate and provides a certain evidence for controlling the quality of Chanshukang Granule.
ABSTRACT
Objective To establish an HPLC method for the determination of isopimaric acid in the leaves of Platycladus orientalis and its preparations Cebai No.V Capsula and Isopimaric Acid Capsula to evaluate the quality of them. Methods HPLC Method was developed. Kromasil C18(200 mm?4.6 mm, 5 ?m) column was used and the mobile phase: methyl alcohol-water-acetic acid (60∶37∶3), float rate: 1 mL/min, temperature: 25 ℃, wavelength: 231 nm, injected volume: 10 ?L. Content of isopimaric acid in samples was calculated by external standard. Results The linearity relationship of isopimaric acid was good in the range of 1.25-10.00 ?g. The equation of standard curve: Y=66 214 X+2 487.9, r=1.000. The average recovery was 95.8%, RSD=2.7% (n=5). The determination results of isopimaric acid in three batches of P. orientalis were 3.09, 3.20, and 3.56 mg/g; three batches of Cebai No.V Capsula were 10.39, 9.67, and 10.99 mg/g; three batches of Isopimaric Acid Capsula were 553.89, 541.50, and 528.83 mg/g. Conclusion The method is reliable, simple, and precise, which could be used for the quality control of P. orientalis and its capsules.