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  • Title: [Simultaneous determination of six organic acids in Lonicerae japonicae flos and Lonicerae flos in different habitats by HPLC].
    Author: Liu MY, Gao SL, Liu LH, Zhang Y, Nian LJ, Liu XY.
    Journal: Zhong Yao Cai; 2013 Feb; 36(2):196-8. PubMed ID: 23901641.
    Abstract:
    OBJECTIVE: To establish an HPLC method for simultaneous determination of six organic acids in Lonicerae japonicae Flos and Lonicerae Flos in different habitats. METHODS: The chromatographic separation was carried out on a Waters C18 column (4. 6 mm x 250 mm, 5 microm) with gradient elution of acetonitrile and 0.1% phosphoric acid at a flow rate of 1 mL/min. The detection wave-length was 326 nm. RESULTS: The contents of neochlorogenic acid and cryptochlorogenic acid in Lonicerae japonicae Flos in different habitats were very low. The contents of chlorogenic acid in Lonicerae japonicae Flos in Pingyi, Fei County, Fengqiu and Jvlu were significantly higher than that in Shangluo, but the contents of other organic acids were similar. The contents of six kinds of organic acids in Lonicerae Flos in different origins were obviously higher than those in Lonicerae japonicae Flos. CONCLUSION: A simple, accurate and credible method is developed and validated for quality control of six organic acids from Lonicerae japonicae Flos and Lonicerae Flos.
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