HPLC法测定各沪产地龙和广地龙中次黄嘌呤、黄嘌呤、尿嘧啶和尿苷的含量
Academic Journal of Second Military Medical University(2015)
Abstract
目的 测定各种沪产地龙与广地龙中次黄嘌呤、黄嘌呤、尿嘧啶、尿苷的含量,建立地龙药材质量评价的方法.方法 用0.9%生理盐水超声提取地龙,SORBAX SB-Aq色谱柱(250 mm×4.6mm,5μm,Aglient Co.,Ltd),流动相:5 mmol/L磷酸二氢钾(pH 2.9),流速1 mL/min,检测波长254 nm,柱温30℃,进样量10μL,采用HPLC法,同时测定次黄嘌呤、黄嘌呤、尿嘧啶、尿苷4种核苷类成分的含量.结果 次黄嘌呤的线性范围为0.500 0~100.00 μg (r=0.999 9),平均回收率99.37%,RSD=1.36%(n=6);黄嘌呤的线性范围为0.500 0~100.00 μg(r=0.993 1),平均回收率91.57%,RSD=1.40%(n=6);尿嘧啶的线性范围为0.500 0~100.00 μg (r=0.999 9),平均回收率95.31%,RSD=1.64%(n=6);尿苷的线性范围为0.500 0~100.00 μg(r=0.999 9),平均回收率100.21%,RSD=1.98%(n=6).结论 该方法重复性、回收率好,可用于测定地龙与广地龙中次黄嘌呤等4种核苷类成分的含量.
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Key words
Shanghai Pheretima,Pheretima aspergillum (E.Perrier),hypoxanthine,xanthine,uridine,uracil,high pressure liquid chromatography
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