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我听过一个核磁讲座说用丙酮洗核磁管容易残留丙酮峰(看起来干了其实还有残余),并且丙酮峰难以消除。
那位老师建议说尽量不要用丙酮洗核磁管。
新样品管也不一定是干净的,在核磁手册里是这么写的:
Sample tubes must always be kept clean and freee from dust and scratches.Do not scrub the tubes with test brushes.Be aware that new NMR tubes cannot be assumed to be clean.The tubes may be cleaned by washing in Acetone or distilled water.
洗完后用N2 吹干就可以了.乙醇要吹一会,好象丙酮能快些吧
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