【摘要】 本文报道了用紫外和可见分光光度法测定倍子单宁酸的研究。着重论述了两种方法的测定条件和精密度,测定结果与皮粉法作了对照。 研究结果证明,两种方法都比较快速和简便,紫外分光光度法精密度较高,偏差较小,更适于倍子单宁酸的定量分析。更多还原

【Abstract】 Investigations of two analytical methods, visible spectropliotometric and ultraviolet spectrophotometrio for determination of tannic acid were reported. Determined condition and precision were discussed in detail. Results were compared with that of hide powder method.It has been shown that both methods were rapid and simple, UVwas the more precise one, which had less deviation and was more adaptable to the quantitative analysis of tannic acid.更多还原