A method for measuring ddt in water by molecular imprinting selective fluorescence quenching method

A fluorescence quenching method and molecular imprinting technology, applied in the field of environmental chemical monitoring, can solve the problems of complicated analysis process, inability to work on site, secondary pollution, etc.
CN109900665BActive Publication Date: 2021-04-30OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
Publication Date
2021-04-30

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Abstract

The invention discloses a method for measuring DDT in water by molecular imprinting selective fluorescence quenching method. First, sodium ethylenediaminetetramethylene phosphate forms a complex with DDT in water samples, and then enriches the complexes sequentially. , eluted, and finally detected by fluorescence technology. The formed complex has an obvious quenching effect on the fluorescence system, and the degree of fluorescence signal quenching has a linear relationship with the concentration of DDT in water. The method has the characteristics of being on-site, fast, simple and sensitive, and solves the problems existing in the prior art such as inability to work on-site, long analysis duration, complicated analysis process, harsh conditions, high energy consumption, and especially secondary pollution.
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Description

technical field

[0001] The invention belongs to the technical field of environmental chemical monitoring, and relates to a device and a method for measuring DDT in water bodies, in particular to a method for measuring DDT in water bodies by a molecular imprint selective fluorescence quenching method. Background technique

[0002] DDT is also called DDT (four isomers), and its chemical name is bis-p-chlorophenyltrichloroethane. It is one of the important contents in water sample environmental monitoring. At present, the commonly used method for the determination of DDT in water is gas chromatography. The method is characterized by long duration, complicated analysis process, harsh conditions, large consumption of reagents, and the introduction of organic solvents harmful to human body to varying degrees in the pretreatment process of the method. , resulting in a large amount of waste of reagents and secondary pollution. At the same time, the method requires expensive and larg...

Claims

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