|Chromatographic behavior of poly(styrene-divinybenzene) encapsulated packing material for capillary elechochromatography|
|Zhang, GD; Xu, BJ
|刊名||JOURNAL OF CHROMATOGRAPHY A
|WOS标题词||Science & Technology
|类目[WOS]||Biochemical Research Methods
; Chemistry, Analytical
|研究领域[WOS]||Biochemistry & Molecular Biology
; PACKED CAPILLARIES
; STATIONARY PHASES
Poly(styrene-divinylbenzene) encapsulated silica (PS-DES) was synthesized and its characteristics as capillary electrochromatography stationary phase were studied. On capillary columns packed with this stationary phase, the effects of acetonitrile concentration as well as pH values on electroosmotic flow, and the effect of the latter on column efficiency were evaluated. Aromatic hydrocarbons, polar and basic medicinal compounds were successfully separated by using reversed-phase elution. it was evident that selectivity based on pi-pi electronic interaction between solute and stationary phase molecules contributed to the separation. Peaks in the chromatograms obtained were generally symmetrical. At a pH of the mobile phase as high as 11.2, the stationary phase was still stable after more than 160 h of exposure. (C) 2001 Elsevier Science B.V. All rights reserved.
|作者单位||Peking Univ, Sch Pharmaceut Sci, Dept Analyt Chem, Beijing 100083, Peoples R China|
Zhang, GD,Xu, BJ. Chromatographic behavior of poly(styrene-divinybenzene) encapsulated packing material for capillary elechochromatography[J]. JOURNAL OF CHROMATOGRAPHY A,2001,912(2):335-342.
Zhang, GD,&Xu, BJ.(2001).Chromatographic behavior of poly(styrene-divinybenzene) encapsulated packing material for capillary elechochromatography.JOURNAL OF CHROMATOGRAPHY A,912(2),335-342.
Zhang, GD,et al."Chromatographic behavior of poly(styrene-divinybenzene) encapsulated packing material for capillary elechochromatography".JOURNAL OF CHROMATOGRAPHY A 912.2(2001):335-342.
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