摘要
目的:考察计算分光光度法在中药分析中应用的可行性。方法:用三波长法和双波长系数倍率法测定了10批牡丹皮样品中丹皮酚的含量,并与药典法进行比较。结果:由于不同批次药材的紫外光谱的差异,导致计算分光光度法测定的相对误差有时可达10%~30%。
Objective:To investigate the easibility of employed computative spectrophotometry in the assay of traditional Chinese medicines. Method: Make contents of peaonol in 10 samples of Cortex Moutan were determined by threewavelength spectrophotometry and dual wavelength Kratio spectrophotometry,and then compared with the method in Chinese Pharmacopeia.Result:The differences of the UV spectrum of different lots of samples bring about relative error.sometimes up to 10%~30% for computative spectrophotometry.Conclusion:Computative spectrophotometry should be used carefully in assaying traditional Chinese medicines.
出处
《中国中药杂志》
CAS
CSCD
北大核心
1998年第8期489-490,共2页
China Journal of Chinese Materia Medica
关键词
牡丹皮
丹皮酚
系数倍率法
含量测定
分光光度法
peaonol
Cortex Moutan
threewavelength spectrophotometry
Kratio spectrophotometry
assay