实验可知，在用２，６－二氯靛酚法滴定测Ｖｃ时，以一定量的硅藻土处理果蔬Ｖｃ待测液，会产生脱色效果，并得出脱色效果最佳时的硅藻土的使用量。同时也表明，只要采用硅藻土处理，无论脱色效果是否彻底，都会给测定结果带来显著性的误差。对２，６－二氯靛酚与Ｖｃ速测片两种测Ｖｃ方法的相关性进行了统计学的检验，结果表明二者无显著性差异。 Experiments show that, with 2,6-dichloro-indophenol method titration Vc, a certain amount of diatomaceous earth treated Vc test solution, will have decolorization effect, and obtained the best decolorization effect of diatomaceous earth The amount of use. At the same time, it also shows that as long as the diatomaceous earth treatment is carried out, the determination result will bring significant error no matter whether the decolorization effect is complete or not. The correlation between 2,6-Dichloro-indophenol and Vc-measured Vc was tested statistically. The results showed that there was no significant difference between them.