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Relationship Between Retention on Chromatography and Charge State of Microcystins
Author(s): CHEN Xiao-guo, XIAO Bang-Ding, AO Hong-yi, CHEN Xu-dong, XU Xiao-qing
Pages: 19-
21
Year: 2005
Issue:
6
Journal: JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY
Keyword: 微囊藻毒素; 高效液相色谱; pH; 保留系数; 电离状态;
Abstract: 研究了微囊藻毒素MCRR和MCLR两种变体的荷电状态和色谱保留行为随流动相Ph的变化.结果表明,在实验Ph范围内,MCRR的保留系数K随Ph值的增加而单调增加,MCLR的K值则先增加后减小.2种MC荷电为零组分的比例δ0随Ph值的变化也有同样的规律,说明MC的色谱保留行为与其荷电状态有密切关系.可以利用这一规律,通过MC的结构信息来预测其色谱保留行为,进而为优化色谱条件提供理论指导.
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