methods the constituents were separated and purified by column chromatograph and identified by spectral analysis and physical data.
方法经柱色谱分离,理化常数和光谱分析鑒定化合物结构。
sucralose was purified by column chromatograph and determined by thin layer chromatograph.
采用薄层色谱法定性,以柱色谱法分离提纯三氯蔗糖。
to extract the alkaloids with acidic solution and organic solvent, and to isolate tetrandrine and fanchineline with column chromatograph and thick-layer chromatograph.
采用酸水—有机溶剂法提取生物堿,柱层析、制备层析分离汉防己甲素和汉防己乙素;
the method shows good accuracy and precision as the standardized error is less than 2%, while the absolute error to the column chromatograph result is less than 3%.