---

期 刊 ：中国中药杂志 1998年 23卷 08期 页码：489.

关键词：牡丹皮；丹皮酚；三波长法；系数倍率法；含量测定；

Keywords:peaonol, Cortex Moutan, three wavelength spectrophotometry, K ratio spectrophotometry, assay,

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％。结论：把计算分光光度法应用于中药分析时应慎重考察。

Abstract: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 three wavelength spectrophotometry and dual wavelength K ratio 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.

---