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Separation of Sulfonamides on the Dodecylamine-N,N-Dimethylene-phosphonic Acid Modified Zirconia Stationary Phase
Author(s): YAO Li-Feng, JIN Su-rong, WANG Zhi-hua, FENG Yu-qi, DA Shi-Lu
Pages: 44-
45,62
Year: 2005
Issue:
3
Journal: JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY
Keyword: 氧化锆; 磺胺; 十二胺-N; N-二亚甲基膦酸;
Abstract: 用十二胺-N,N-二亚甲基膦酸吸附改性氧化锆,制备了一种新的锆基质色谱固定相,考查了4种磺胺药物在该固定相上的分离.通过甲醇含量、流动相pH值对磺胺色谱保留行为的影响,研究了磺胺在该固定相上的保留机理:由于磺胺药物和固定相都具有两性特征,溶质存在疏水作用、电荷排斥等多种保留机理.在不同pH条件下,4种磺胺药物均得到了快速、高效地分离.
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