SPE-HPLC测定风湿骨痛片中6种生物碱类物质的含量

    Content Determination of Six Alkaloids in Fengshigutong Tablet by SPE-HPLC

    • 摘要: 目的 建立SPE-HPLC同时检测风湿骨痛片中6种生物碱类物质含量的方法。方法 采用Welch XB-C18(4.6 mm×250 mm,5 μm)色谱柱,以含乙腈-四氢呋喃(25:15)溶液为流动相A,以0.05%醋酸铵溶液为流动相B进行梯度洗脱,流速为1.0 mL·min-1,检测波长为235 nm,柱温为30℃,进样量为10 μL。结果 6种生物碱在优化条件下均可有效分离,苯甲酰新乌头原碱、苯甲酰乌头原碱、苯甲酰次乌头原碱、新乌头碱、次乌头碱和乌头碱分别在162.4~8 121 ng(r=1.000 0)、24.96~1 248 ng(r=1.000 0)、58.03~2 902 ng(r=1.000 0)、17.26~863.0 ng(r=1.000 0)、20.16~1 008 ng(r=1.000 0)和19.90~995.0 ng(r=1.000 0)内有良好的线性关系,平均回收率为88%~98%,RSD为1.8%~2.4%。结论 该方法准确、可靠,适用于风湿骨痛片中生物碱类物质含量的分析。

       

      Abstract: OBJECTIVE To establish an SPE-HPLC method for the determination of six alkaloids in Fengshigutong tablet. METHODS Welch XB-C18 column(4.6 mm×250 mm, 5 μm) was used, the mobile phase was a mixture of acetonitriletetrahydrofuran (25:15) (A)-0.05%ammonium acetate at a flow rate of 1.0 mL·min-1 for gradient elution, the column temperature was 30℃ with analysis was monitored at 235 nm, injection volume 10 μL. RESULTS The good linearity with peak areas was achieved in the rang of 162.4-8 121 ng(r=1.000 0), 24.96-1 248 ng(r=1.000 0), 58.03-2 902 ng(r=1.000 0), 17.26-863.0 ng(r=1.000 0), 20.16-1 008 ng(r=1.0000) and 19.90-995.0 ng(r=1.000 0) for benzoyl new aconitine, benzoyl aconitine, benzoyl methacholine, new aconitine, hypaconitine and aconitine, the average recoveries in the range of 88%-98%, RSD was 1.8%-2.4%. CONCLUSION The method is accurate and reliable, and it is suitable for the analysis of alkaloids content in Fengshigutong tablets.

       

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