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Aromatic hydrocarbon linked silica gel solid phase and its preparation and use

A technology for bonding silica gel and calixarene, which is applied in chemical instruments and methods, other chemical processes, instruments, etc., can solve the problems of not providing synthesis routes and technologies, and achieves improved chromatographic peak symmetry, simple preparation method, and stability. high effect

Inactive Publication Date: 2004-02-04
WUHAN UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

Its stationary phases are all synthesized by patented methods, no specific synthetic routes and technologies are provided

Method used

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  • Aromatic hydrocarbon linked silica gel solid phase and its preparation and use

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Embodiment

[0022] Example: using chloropropyltriethoxysilane as coupling agent and tetrabutylammonium bromide as phase transfer catalyst, p-tert-butyl calix[8]arene as raw material, and Kromasil 5 μm spherical silica gel as substrate to prepare calix Aromatic silica bonded stationary phase. The p-tert-butylcalix[8]arene bonded stationary phase was prepared according to one to four steps. Characterized by infrared spectroscopy, thermal analysis and elemental analysis, the stationary phase was successfully synthesized.

[0023] Using chloropropyl silica gel and KBr pellets as references, the computer carried out background subtraction to obtain the FTIR spectrum of the p-tert-butylcalix[8]arene bonded stationary phase. Spectrum display: ν2961.5cm -1 ;ν2929.7cm -1 ;ν2847.0cm -1 Stretching vibration absorption peak of saturated C-H; ν1599.1cm-1 ;ν1577.7cm -1 ;ν1487.6cm -1 Benzene ring skeleton vibration absorption peak; ν1477.9cm -1 ;ν1384.3cm -1 CH 2 、CH 3 Bending vibration peak;...

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Abstract

A stationary phase of calicanee bonded silica gel for the liquid or electric chromatography is disclosed, which is prepared through solid-phase condensation reaction between calicanee sodium phenolate and halopropyl bonded silica gel in nitrogen or argon gas at 110-120 deg.c under existance of quaternary ammonium salt as phase-transfer catalyst. Its advantage is high stability.

Description

technical field [0001] The invention relates to a calixarene bonded silica gel stationary phase, a preparation method and application thereof. Background technique [0002] Chromatography plays a pivotal role in modern separation and analysis, and is widely used in chemistry, biology, medicine, life science and environmental science, and has become an indispensable research method. The separation system is becoming more and more complex, especially the separation and analysis of actual samples puts forward higher requirements for chromatographic technology, especially chromatographic stationary phase. At present, there are many types of commercially available silica gel and modified silica gel, but the octadecyl bond The reversed-phase chromatographic stationary phase represented by synthetic silica gel (ODS) can no longer meet the requirements of separation and analysis. Therefore, the research and development of high-selectivity chromatographic stationary phase is one of ...

Claims

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Application Information

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IPC IPC(8): B01D15/08B01J20/26
Inventor 达世禄冯钰锜刘敏李来生
Owner WUHAN UNIV
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