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【简答题】

我对聚苯乙烯-二乙烯苯柱很有兴趣,主要是它耐高温、耐酸碱、但有关这方面的文献很少,但对于他的分离效能我一直心里没底,我的问题有三:
1、分离效果与ODS比较,是相当呢,还是更胜一筹,或是更差?
2、我原以为它是整体住,但看过资料后发现也是颗粒的比如5u,请问该类型的柱是否符合速率理论、是不是粒径越小分离效果会几何级的增加?
3、问什么没有1.7u的这种柱出现呢?

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参考答案:
举一反三

【单选题】Desperately short of living space and dangerously prone to flooding, the Netherlands plans to start building homes, businesses and even roads on water. With nearly a third of the country already cover...

A.
most parts of the country are covered by water
B.
the country is constantly threatened by floods
C.
it will promote the cultivation of flowers
D.
people think it better to live on water

【单选题】四元轴烯t、苯乙烯b及立方烷c的分子式均为C 8 H 8 。下列说法正确的是( )

A.
b的同分异构体只有t和c两种
B.
t、b、c的二氯代物均只有三种
C.
t、b、c中只有t的所有原子处于同一平面
D.
t、b、c中只有t和b能使酸性KMnO4溶液褪色
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【单选题】Desperately short of living space and dangerously prone to flooding, the Netherlands plans to start building homes, businesses and even roads on water. With nearly a third of the country already cover...
A.
most parts of the country are covered by water
B.
the country is constantly threatened by floods
C.
it will promote the cultivation of flowers
D.
people think it better to live on water
【单选题】四元轴烯t、苯乙烯b及立方烷c的分子式均为C 8 H 8 。下列说法正确的是( )
A.
b的同分异构体只有t和c两种
B.
t、b、c的二氯代物均只有三种
C.
t、b、c中只有t的所有原子处于同一平面
D.
t、b、c中只有t和b能使酸性KMnO4溶液褪色
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