Citation: Yuan Wang, Jun Yang, Xin Lu, Guo Wang Xu. Determination of selectivity of HPLC systems by correspondence factor analysis[J]. Chinese Chemical Letters, ;2007, 18(5): 565-568. doi: 10.1016/j.cclet.2007.03.026 shu

Determination of selectivity of HPLC systems by correspondence factor analysis

National Chromatographic Research & Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

Received Date: 31 December 2006

Fund Project: This study has been supported by the National Natural Science Foundation of China (No. 20675082), the Foundation for Distinguished Young Scholars from National Natural Science Foundation of China (No. 20425516) and the Knowledge Innovation Program of the Chinese Academy of Sciences (KSCX2-SW-329, KGCX2-SW-213).

Correspondence factor analysis (CFA) was employed to study the selectivity of 14 HPLC systems, The tested LC systems were classified as reversed-phase (RP), ion-exchange (IE) and hydrophilic interaction chromatography (HILIC) modes. It was found that the retentions of the hydrophilic solutes on HILIC column were significantly influenced by the second-order effects besides their hydrophilic properties. Organic modifiers and residue silanol groups on silica surface both participated in retention. HypersilTM amino column performed separation in the HILIC mode at appropriate conditions, and its retention mechanism was more similar to that of HILIC silica column than that of HILIC column coating poly (aspartamide) groups.
- CFA,
- HILIC,
- Liquid chromatography
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