天气预报 > 其他 > 测定红外光谱时对样品有什么要求
测定红外光谱时对样品有什么要求
更新时间: 2020-10-03 00:00:00  

要求如下:

1、样品必须预先纯化,以保证有足够的纯度;

2、样品须预先除水干燥,避免损坏仪器,同时避免水峰对样品谱图的干扰;

3、易潮解的样品,应放置在干燥器内;

4、对易挥发,升华,对热不稳定的样品,请用带密封盖或塞子的容器盛装并盖紧,同时必须注明;

5、对于有毒性和腐蚀性的样品,用户必须用密封容器装好,送样时必须分别在样品瓶标签的明显位置上注明。

关键词: 测定 红外 光谱 样品 什么 要求

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