Prometryn molecular imprinting solid phase extraction column and application method thereof

A solid-phase extraction column and molecular imprinting technology, which is applied in chemical instruments and methods, preparation of test samples, and other chemical processes, can solve the problem of overlapping matrix signals and analyte signals, uneven material particles, and affecting detection results, etc. question
CN103433009AActive Publication Date: 2013-12-11JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2013-12-11

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Abstract

The invention relates to the technical field of solid phase extraction, and particularly discloses a prometryn molecular imprinting solid phase extraction column and an application method thereof. With prometryn as a template, methacrylic acid as a functional monomer, glycol dimethyl methacrylate as a cross-linking agent, azodiisobutyronitrile as an initiating agent, dichloromethane as a solvent, a precipitation polymerization method is adopted to prepare prometryn molecular imprintingpolymeric microsphere; microballoons are uniformly filled in the solid phase extraction column, thus obtaining the prometryn molecular imprinting solid phase extraction column; dichloromethane is utilized as, residuals of simazine, atrazine, szimetrin, propazine, ametryn, terbuthylazine, prometryn and terbutryn in a grain sample are simultaneously enriched and purified by taking a sample solvent and dichloromethane-acetonitrile as a leaching solvent and taking methyl alcohol-water as an eluting solvent, when used together with a capillary electrophoresis multiresidue detection method, the prometryn molecular imprinting solid phase extraction column can simultaneously detect the residuals of the eight herbicideds.
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Description

technical field

[0001] The invention relates to the technical field of solid-phase extraction, in particular to a promethazine molecularly imprinted solid-phase extraction column and its use method, and combined with capillary electrophoresis for selective separation, enrichment and detection of simazine and atrazine in grain samples Residues of desine, siclozine, proprazine, arazine, terbuthine, promethazine and terbuthine. Background technique

[0002] Triazine herbicides are a class of pesticides widely used in the world. They are suspicious substances of environmental hormones, which can cause cancer and interfere with endocrine. However, the residual concentration of triazine herbicides in food is very low, and often need to Proper enrichment is carried out before detection. In addition, in the multi-residue chromatographic detection after extraction, a large number of coexisting matrices extracted at the same time are particularly likely to contaminate the chromatograp...

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
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