杠板归的形态组织和紫外吸收光谱鉴别抗坏血酸-铁(Ⅱ)络合反应在薄层色谱板上的吸收光谱
Study on the Complexation Reaction of Ascorbic Acid With Fe (ⅱ) by Thin Layer Chromatography / In-situ Absorption Spectrometry