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  • Title: [Determination of tortoside A in Ilicis pubescentis by RP-HPLC].
    Author: Li S, Zhou Y, Tu P.
    Journal: Zhongguo Zhong Yao Za Zhi; 2011 Nov; 36(22):3146-8. PubMed ID: 22375396.
    Abstract:
    OBJECTIVE: To establish a RP-HPLC method for the determination of tortoside A in Ilex pubences. METHOD: Kromasil-C18 (4.6 mm x 250 mm, 5 microm) column was used in HPLC with mobile phase acetonitrite-0.1% H3PO4 (17:83), the column temperature was 30 degrees C, the flow rate was 1 mL x min(-1), the detection wavelength was set at 210 nm, and inject volume was 10 microL RESULT: Tortoside A was well separated under the established conditions, the liner range of tortoside A was 26.05-521.00 microg (r = 0.999 9, n = 6), and the average recovery was 98.42%. CONCLUSION: It was the first time to establish the RP-HPLC method with accuracy, good reproducibility for determining the content of tortoside A in I. Pubescentis.
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