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  • Title: [Determination of HPLC fingerprint of Qingfengtong capsule].
    Author: Zhang YX, Yang H, Zhang QW, Yi H, Chen GP.
    Journal: Zhongguo Zhong Yao Za Zhi; 2007 Dec; 32(23):2492-3. PubMed ID: 18330240.
    Abstract:
    OBJECTIVE: To establish a fingerprint analysis method of Qingfengtong capsule by HPLC. METHOD: The samples were extracted with 70% ethanol in an ultrasonic bath. The extracts were analyzed at 35 degrees C on a Diamonsil C18 column (4.6 mm x 250 mm, 5 microm) with 0.1 mol x L(-1) potassium dihydrogen phosphate water-solution as mobile phase A, and methanol as mobile phase B. The analysis followed a linear gradient elution program. Initial condition of the mobile phase was 10% B for 2 minutes; then changed to 90% B in 40 minutes. The flow rate was kept at 1.0 ml x min(-1) and the detector wavelength was 262 nm. RESULT: The main peaks in fingerprint chromatogram of Qingfengtong capsules were separated fairly well. The results of method validation meet the requirements for the fingerprints. CONCLUSION: The established method can be used for the quality control of Qingfengtong capsules.
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