高中生物实验“观察植物细胞的有丝分裂”中运用了碱性染料龙胆紫,很多资料也对碱性染料做了描述,但各不相同。笔者看到很多文章和习题,都认为“漂洗的目的是洗去根尖上多余的解离液,因为解离液中含有HCl,而染色的染料呈碱性。”然而,碱性染料到底是什么样的,一定呈碱性吗?下面笔者就这个问题做简要分析。 High school biology experiments “observation of plant cells mitosis ” in the use of alkaline dye gentian violet, a lot of information also describes the basic dyes, but different. I saw a lot of articles and exercises, all think “The purpose of rinsing is to wash off the extra apodization of dissociation solution, because the dissociation solution contains HCl, while the dyed dye is alkaline.” However, basic dyes In the end what kind of, must be alkaline? The author below to do a brief analysis of this issue.