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Method for preparing molecular brand filling

A technology of molecular imprinting and polymerization, applied in chemical instruments and methods, chemical/physical/physical-chemical processes, solid solvent extraction, etc. and other problems, to achieve the effect of small column pressure, reducing dosage and improving separation efficiency

Inactive Publication Date: 2007-08-29
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this preparation process is too complicated and not suitable for large-scale applications.
[0011] These two methods of using carriers also have a common disadvantage: when loaded into a separation column for use, they both rely on the molecular imprinting material itself to withstand the pressure
The molecularly imprinted polymer has a porous structure from the surface to the core, and the pressure it can withstand is not too high, especially the resistance to the contact pressure between particles (the reaction is local high pressure), and it is easy to break during use. , resulting in loss of recognition sites and increased column pressure
[0012] In addition, there are people who prepare molecular imprinted films on the electrode surface (Shoji R, Takeuchi T, Kubo I, Anal.Chem75, 2003, 4882-4886), but because of its small surface area, it can only be used for trace detection

Method used

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  • Method for preparing molecular brand filling

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Experimental program
Comparison scheme
Effect test

Embodiment

[0042] 1. Experimental materials

[0043] 1.1 Source

[0044] Emodin was purchased from Huaian Jiutai Biochemical Co., Ltd., with a purity greater than 98%.

[0045]Acrylamide (AA), trimethylolpropane trimethacrylate (TRIM), and azobisisobutyronitrile (AIBN) were purchased from Bailingwei Chemical Reagent Company. TRIM was treated as follows before use: TRIM was washed with 10% aqueous sodium hydroxide solution, dried with anhydrous magnesium sulfate, and then redistilled under reduced pressure. AIBN was recrystallized from methanol before use.

[0046] Tetrahydrofuran (THF) is chromatographically pure, dried over sodium and redistilled before use. Methanol and acetonitrile are chromatographically pure, and acetic acid is analytically pure.

[0047] 500-mesh hollow glass microspheres, triethoxyvinylsilane and triethoxyaminoethylsilane were purchased from Qingdao Haid Chemical Reagent Company.

[0048] 0.75mm inner diameter PEEK tubes and various PEEK joints (concave and c...

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PUM

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Abstract

The invention relates to a manufacture method for a molecule branding filling material that forms molecule branding polymer film layer on the surface of carrier. It could sharply decrease the consumption of raw material. The polymer could distribute more equally, compact and full on the surface of carrier. The method is easy to operate and is suitable to take large scale producing.

Description

[0001] This application is a divisional application of the invention patent application "a filler for molecular imprinting solid phase extraction and its preparation method" with the filing date of May 28, 2004 and the application number of 200410009139.9. technical field [0002] The invention relates to a filler for molecular imprinting solid phase extraction, in particular to a novel carrier for molecular imprinting solid phase extraction filler and molecular imprinting polymer filler prepared by using the carrier. The present invention also relates to a method for preparing the above-mentioned filler. Background technique [0003] Molecular imprinting technology is a relatively advanced means of material separation, which is often combined with solid phase extraction to separate substances that are difficult to separate by conventional means, such as separating specific active ingredients in crude plant extracts with complex components. In 1972, Wullf et al first applied...

Claims

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Application Information

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IPC IPC(8): C08J5/24B01D11/02B01J19/30
Inventor 徐筱杰庄艳骆宏鹏陈丽蓉
Owner PEKING UNIV
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