Hybrid ordered mesoporous silica gel chromatograph stationary-phase stuffing and preparation method thereof

A hybrid mesoporous and silica gel technology, applied in chemical/physical processes, ion exchange, ion exchange treatment devices, etc., to achieve the effect of reducing column pressure, good water resistance, and reducing column pressure
CN101717513BInactive Publication Date: 2011-08-10CHINA PHARM UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PHARM UNIV
Publication Date
2011-08-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the chemical technical field of mesoporous material preparation and analysis, in particular to a hybrid ordered mesoporous silica gel chromatograph stationary-phase stuffing and a preparation method thereof. The hybrid ordered mesoporous silica gel chromatograph stationary-phase stuffing is characterized in that: hydroxyl connected with silicon atoms on the original hybrid ordered mesoporous silica gel is substituted by aminopropyl. The stuffing has regular and smooth spherical appearance; frameworks of the silicon gel are doped with ethylene radical which has weak hydrophobicity, therefore, the stuffing can not generate silicon gel dissolution phenomenon when being used in flow phase with high aqueous phase proportion and can bear larger pH range (1-11); furthermore, mesoporous pore paths are distributed sequentially, therefore, the mass transfer can be accelerated, and the column pressure is reduced; and the invention is suitable for fast segregation analysis under high aqueous phase proportion.
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Description

technical field

[0001] The invention relates to the technical field of porous material preparation and analytical chemistry, in particular to a hybrid ordered mesoporous silica gel, which can be used as a chromatographic stationary phase filler. Background technique

[0002] Hybrid ordered mesoporous silica refers to the silicon ester [(OR) 3 SiR'Si(OR) 3 ] As one of the silicon sources, ordered mesoporous silica gel containing organic groups in the skeleton is directly prepared after hydrolysis polymerization. Compared with ordered mesoporous silica gel, hybrid silica gel not only has high specific surface area, regularly arranged pores, narrow pore size distribution, but also has better hydrothermal stability, mechanical stability and chemical stability, and the preparation method It is simple and highly controllable, and shows excellent prospects in the application of chromatographic separation.

[0003] Commercial chromatographic column fillers are basically prepared ...

Claims

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