摘要
在００５ｍｏｌ·Ｌ－１Ｈ２ＳＯ４介质中，用碳糊电极（石墨粉：液体石蜡油＝１５∶１）阳极扫描伏安法测定秋水仙碱，检测限１×１０－７ｍｏｌ·Ｌ－１，检测线性范围４０×１０－７～１×１０－３ｍｏｌ·Ｌ－１，氧化时出现两个氧化峰，峰电位分别为１０７Ｖ和１３３ＶｖｓＳＣＥ，峰电位随ｐＨ值升高而正移。对原料和片剂进行了测定，均获得满意的结果。
Colchicine is determined by anodic voltammetry using a carbon paste electrode (graphite powder∶paraffin liquid=1 5∶1) in 0 05 mol·L -1 H 2SO 4, with a linear range of 4 0×10 -7 ～1 0×10 -3 mol·L -1 , detection limit 1×10 -7 mol·L -1 . Two waves at 1 07 and 1 33 V vs SCE were observed in the anodic scan, peak potential is increased with pH. The raw material and tablets of colchicine have been analysed with good results.
出处
《药学学报》
CAS
CSCD
北大核心
1997年第3期210-212,共3页
Acta Pharmaceutica Sinica
