Imidazolium‐embedded iodoacetamide‐functionalized silica‐based stationary phase for hydrophilic interaction/reversed‐phase mixed‐mode chromatography. Issue 18 (22nd August 2016)

• Record Type: Journal Article
• Authors: Wang, Huizhen; Zhang, Lu; Ma, Teng; Zhang, Liyuan; Qiao, Xiaoqiang
• Is Part Of: Journal of separation science. Volume 39:Issue 18(2016)
• Page Start: 3498
• Page End: 3504
• Publication Date: 2016-08-22
• Subjects: Hydrophilic interaction liquid chromatography -- Mixed‐mode chromatography -- Reversed‐phase liquid chromatography -- Stationary phases; Separation (Technology) -- Periodicals; Chromatographic analysis -- Periodicals; 543.089
• DOI: 10.1002/jssc.201600448
• Languages: English
• ISSNs: 1615-9306

Abstract

Abstract : A novel imidazolium‐embedded iodoacetamide‐functionalized silica‐based stationary phase has been prepared by surface radical chain‐transfer polymerization. The stationary phase was characterized by Fourier transform infrared spectrometry, thermogravimetric analysis, and element analysis. Fast and efficient separations of polar analytes, such as nucleosides and nucleic acid bases, water‐soluble vitamins and saponins, were well achieved in hydrophilic interaction chromatography mode. Additionally, a mixed mode of hydrophilic interaction and reversed‐phase could be also obtained in the analysis of polar and nonpolar compounds, including weak acidic phenols, basic anilines and positional isomers, with high resolution and molecular‐planarity selectivity, outperforming the commercially available amino column. Moreover, simultaneous separation of polar and nonpolar compounds was also achieved. In conclusion, the multimodal retention capabilities of the imidazolium‐embedded iodoacetamide‐functionalized silica‐based column could offer a wide range of retention behavior and flexible selectivity toward hydrophilic and hydrophobic compounds.