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[求助] [C12mim]Br 和异辛酸的混合溶液做冷冻电镜的一些问题

[C12mim]Br 和异辛酸的混合溶液做冷冻电镜的一些问题

各位前辈,新手进来请教~
我之前在本校用[C12mim]Br 和异辛酸的混合溶液1比1做常温电镜,浓度不同,可以看到各种不同形态。可是送样做冷冻电镜却只看到一些黑点,即使浓度很大也不行,破了老板不烧财,恳请各位高手解释原因,会不会两者熔点差别大,[C12mim]Br熔点33℃,异辛酸-8.3℃?还是这个体系有问题?另外如果想要看形态,还有什么更有说服力的方法?急急急,各位帮帮忙啊
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