reagentlife
第9楼2012/04/25
我已经在问浙江的客户了,看他是冷藏还是冷冻保存的。
这个产品在酱油等产品氯丙醇检测项目中常用到。
下面是我们供货商美国Regis关于HFBI,N-七氟丁酰基咪唑的使用注意事项的回复:
Here are some additional comments from our chemist regarding the HFBI material. It is a very sensitive chemical which needs to be handle with lot of care.
It is important that HFBI be kept in a freezer under nitrogen. It will freeze to a solid. When material needs to be taken out of the bottle, it is important that the bottle be allowed to warm to room temperature and completely melted before opening. This is for two reasons: if the material is opened while cold, moisture in the air can condense inside the bottle and on the material, causing it to degrade. Also, if the material is not completely melted, impurities tend to melt faster than the pure product. Therefore the melted material will be higher in impurities than when the entire bottle is melted. It also must always be opened and closed under nitrogen.