以往一般测定血浆维生素C含量的方法,多(?)利用该维生素的还原性质,以2,6-二氯酚靛酚进行滴定。若无特殊处理,用此法仅能测出还原型抗壞血酸。血中维生素C含量颇低,滴定原属不易,且又有其他还原性物质的干摄,因此不易获得满意的结果。1943年Roe与Kuether两氏用2,4-二硝基苯肼比色法,成功地测出全血中抗壞血 In the past the general method of determination of plasma vitamin C content (?) Using the reduction properties of vitamins, with 2,6-dichlorophenol-indophenol titration. Without special treatment, this method can only detect reduced ascorbic acid. Low blood levels of vitamin C, titration is not easy, and there are other dry matter of reducing substances, it is not easy to get satisfactory results. 1943 Roe and Kuether two 2,4-dinitrophenylhydrazine colorimetric method, the successful determination of whole blood anti-ascites