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甲紫溶液的配制方法一般有以下几种:(1)自然溶解法(即将甲紫装入布袋,置于容器中加水令其自然溶解),(2)冷溶搅拌法,(3)热溶搅拌法,(4)加酒精助溶。第一二法溶解所需时间较长,第三法甲紫易形成胶片状浮于液面不易溶解,第四法需耗用酒精,故均有一些缺点。我们的经验,采用温水(50℃左右)溶解,所需时间短,操作简便,含量测定合格。具体操作方法
A purple solution of the preparation of the general methods are the following: (1) natural solution (about A purple into the bag, placed in a container of water to make it naturally dissolved), (2) cold stirring method, (3) hot Stir method, (4) add alcohol to dissolve. The first two methods require a longer time to dissolve, the third method of purple is easy to form a film-like floating in the liquid is not easy to dissolve, the fourth method requires the consumption of alcohol, so both have some shortcomings. Our experience, the use of warm water (about 50 ℃) dissolved, the time required is short, easy to operate, the content determination. Specific methods of operation