【摘要】 <正> 以聚合物为基础的固定相—GDX业已广泛应用于许多领域中的极性化合物的分析、分离,并已取得良好效果。长期以来各方面总认为这类固定相柱效低。这个问题一直没有得到应有的解决。最近报道刘俊杰等人采用氧化改性的办法使GDX固定相柱效有了较大提高。我们重复了这个实验,并发现其中有不少问题,特别是涉及如何准确更多还原

【Abstract】 The evaluation of column performance always makes people confusing because of lacking a more objecctive and reliable standard to refer to. So a new separation index is suggested for evaluating the performance of chromatographic columns. The experimental results show that it is more reasonable and reliable than those we have ever used.The oxidation of polymeric stationary phases is not the best way to approach a better column performance. Perhaps some new varieties of these polymeric stationary phases can be deduced in this way if the process can be strictly controlled.更多还原