Synthesis of selective separation functional material for dichlorvos

A synthesis method and technology of functional materials, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of long response time, slow mass transfer speed, difficult elution of template molecules, etc., and achieve low cost, long service life, The effect of easy control of reaction conditions

Inactive Publication Date: 2009-01-14
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of difficult elution of template molecules, slow mass transfer speed and long response time in the traditional bulk polymerization molecular impri...

Method used

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Embodiment Construction

[0020] Below in conjunction with embodiment, the present invention is further described; Following embodiment is illustrative, not limiting, can not limit protection scope of the present invention with following embodiment.

[0021] The invention adopts molecular imprinting preparation technology to synthesize dichlorvos highly selective separation functional material.

[0022] In the present invention, the volume ratio of acetonitrile and toluene in the mixed solvent of acetonitrile and toluene is 3: 1; The mol ratio of dichlorvos, methacrylic acid, trimethoxypropane trimethacrylate and azobisisobutyronitrile is 1: 2:10:0.25; the volume ratio of dichlorvos to room temperature ionic liquid is 1:4~5; the room temperature ionic liquid is BMIM + PF6 - .

[0023] A method for synthesizing dichlorvos selective separation functional materials, the steps of the synthesis method are:

[0024] (1). Add 3.0 ml of acetonitrile and 1.0 ml of toluene mixed solvent, 0.134 ml (1.0 mmol) o...

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Abstract

The invention relates to a method for synthesis of a material with dichlorvos selective separation function. Dichlorvos is taken as template molecule, room-temperature ion liquid (BMIM<+>PF6<->) is taken as an auxiliary template, methacrylic acid is taken as a functional monomer, TRIM is taken as a crosslinking agent and molecular engram technology is adopted to synthesize a novel material with selective adsorbing function. The invention has the advantages of low cost, simple laboratory operation and easy control of reaction conditions; the adsorbent adopting the synthesized material with dichlorvos selective separation function can be applied to solid-phase extraction and liquid chromatogram combination; the dichlorvos detection capacity is largely improved; the material is particularly applicable to adsorptive detection of trace dichlorvos in various fruits, vegetables and other complex hosts.

Description

technical field [0001] The invention relates to the technical field of functional polymer materials, in particular to a synthesis method for selective separation of functional materials by dichlorvos. Background technique [0002] On the one hand, organophosphorus pesticides can effectively control or eliminate the hazards of agricultural and forestry diseases, insects and weeds, and improve the yield and quality of agricultural products. At the same time, they also cause pesticide residues, which pose a hazard to human health. Pesticide residues are currently the main factor affecting the safety of food and agricultural products in my country, and have seriously affected the sales and export of agricultural products in my country and the health of consumers. [0003] Dichlorvos is an organophosphorus pesticide, which is widely used to kill insects on crops. It has the characteristics of many control objects, wide application range, and strong toxicity. The pesticide can be...

Claims

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Application Information

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IPC IPC(8): B01J20/285B01J20/30
Inventor 方国臻徐志祥王硕刘冰
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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