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本文报道用脉冲极谱法测定中成药香连丸中黄连素的含量。用黄连素纯品摸索了极谱测定条件,黄连素在1%硫酸铵底液中于-1.3V(VS.SCE)有一良好的还原波。实验表明木香成分对测定不干扰,所以无需分离可直接测定。香连丸磨粉后称取一定量用乙醇提取。取一定量提取液,加入1%硫酸铵底液,记录极谱图,测定方法快速,简便,误偏在2%以内。
This paper reports the determination of berberine in Zhongcheng Yaolian pill by pulse polarography. The polarographic assay conditions were explored with berberine pure product. Berberine had a good reduction wave at -1.3 V (VS.SCE) in 1% ammonium sulfate solution. Experiments have shown that the woody components do not interfere with the assay and therefore can be determined directly without the need for separation. Xianglian pills were weighed and weighed with ethanol after extraction. Take a certain amount of extract, add 1% ammonium sulfate bottom solution, record the polarogram, the determination method is fast, simple, and the error is within 2%.