Amphiphilic acetochlor magnetic molecularly imprinted polymer and preparation method and application thereof

A technology of imprinted polymer and acetochlor, which is applied in the field of separation and analysis, achieves the effects of amphiphilicity, high specific selectivity, and improved separation efficiency

Active Publication Date: 2017-05-31
SHANDONG ANALYSIS & TEST CENT
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technology for selectively detecting the content of acetochlor in agricultural

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Amphiphilic acetochlor magnetic molecularly imprinted polymer and preparation method and application thereof
  • Amphiphilic acetochlor magnetic molecularly imprinted polymer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1

[0037] Preparation of amphiphilic acetochlor magnetic molecularly imprinted polymer:

[0038] (1) Material preparation

[0039] The raw material components are mixed according to the following dosages: 0.91 g of ferroferric oxide, 0.91 g of template acetochlor, 0.91 g of alkenyl glycoside functional monomer (structure formula shown in formula I), 1.98 g of divinylbenzene, Crosslinking agent N,N-methylenebisacrylamide 16.17g, initiator azobisisobutyronitrile 0.08g, porogen ethanol 55.31g;

[0040] (2) Preparation of molecularly imprinted polymers with template molecules

[0041] Add the above-prepared reactants into the reaction kettle and mix uniformly, ultrasonically degas for 15 minutes, then fill with nitrogen and deoxygenate for 15 minutes, seal and polymerize in a constant temperature oil bath at 60°C for 24 hours to obtain a polymer with template molecules;

[0042] (3) Preparation of molecularly imprinted polymers with template molecules removed

[0043] The pol...

Example Embodiment

[0046] Example 2

[0047] Preparation of amphiphilic acetochlor magnetic molecularly imprinted polymer:

[0048] (1) Material preparation

[0049] The raw material components are proportioned according to the following dosages: 0.91 g of ferroferric oxide, 0.91 g of template acetochlor, 0.91 g of alkenyl glycoside functional monomer (formula I), and 1.98 g of 4-vinylpyridine , Crosslinking agent ethylene glycol dimethacrylate 16.17g, initiator azobisisovaleronitrile 0.08g, porogen ethanol 55.31g; (2) Preparation of molecularly imprinted polymer with template molecules

[0050] Add the above-prepared reactants into the reaction kettle and mix uniformly, ultrasonically degas for 15 minutes, then fill with nitrogen and deoxygenate for 15 minutes, seal and polymerize in a constant temperature oil bath at 40°C for 18 hours to obtain a polymer with template molecules;

[0051] (3) Preparation of molecularly imprinted polymers with template molecules removed

[0052] The polymer prepared above...

Example Embodiment

[0055] Example 3

[0056] Preparation of amphiphilic acetochlor magnetic molecularly imprinted polymer:

[0057] (1) Material preparation

[0058] The raw material components are mixed according to the following dosages: 0.91 g of ferroferric oxide, 0.91 g of template acetochlor, 0.91 g of alkenyl glycoside functional monomer (structure formula shown in formula I), 1.98 g of vinylbenzene, Coupling agent ethylene glycol dimethacrylate 16.17g, initiator azobisisovaleronitrile 0.08g, porogen ethanol 55.31g;

[0059] (2) Preparation of molecularly imprinted polymers with template molecules

[0060] Add the above-prepared reactants into the reaction kettle and mix uniformly, ultrasonically degas for 15 minutes, then fill with nitrogen and deoxygenate for 15 minutes, seal and polymerize in a constant temperature oil bath at 50°C for 20 hours to obtain a polymer with template molecules;

[0061] (3) Preparation of molecularly imprinted polymers with template molecules removed

[0062] The polym...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an amphiphilic acetochlor magnetic molecularly imprinted polymer and a preparation method and application thereof. Glucose is used as a structural unit, thereby synthesizing hydrophilic alkenyl glycoside type functional monomer modified with imprinting acting site. By use of a hydrophilic-lyophobic dual-functional monomer molecular imprinting technology, the amphiphilic magnetic molecularly imprinted polymer is prepared. The prepared amphiphilic magnetic molecularly imprinted polymer has high specific selectivity, has amphipathicity and good adsorptive property in a water medium, and can be used for acetochlor content determination sample pretreatment in the agricultural products, and then an extraction system for complex sample pretreatment is established through the analytic detection and quantitative analysis of a liquid chromatogram system. The method provided by the invention is simple in step, convenient for operation, and strong in practicability.

Description

technical field [0001] The invention belongs to the technical field of separation and analysis, and in particular relates to a preparation method and application of an amphiphilic magnetic molecular imprinted polymer for detecting acetochlor. Background technique [0002] Acetochlor herbicide is a kind of pre-emergence herbicide widely used in production at present. It has good weed control effect, but has high residual toxicity. The U.S. Environmental Protection Agency has designated acetochlor as a B-2 carcinogen . Since acetochlor herbicides have high water solubility and are easy to leaching, and the soil adsorption constant is relatively low, the amide herbicides applied to farmland can easily transfer to shallow groundwater through infiltration or enter surface water with rainwater runoff. The European Union stipulates that the maximum residue of acetochlor in agricultural products shall not exceed 0.02mg / Kg, so the analysis and detection of acetochlor herbicide is ex...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08F222/38C08F222/14C08F212/36C08F216/14C08F226/06C08F212/08C08J9/26B01J20/26B01J20/30B01J20/28G01N30/02
CPCB01J20/268B01J20/28009C08F212/36C08F222/1006C08F222/102C08F222/385C08J9/26C08J2201/0422C08J2325/16C08J2335/00C08J2335/02G01N30/02C08F216/1416C08F226/06C08F212/08
Inventor 纪文华王晓耿岩玲刘伟王涛
Owner SHANDONG ANALYSIS & TEST CENT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap