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.

Active Publication Date: 2021-04-30
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention provides a method for measuring DDT in water by the molecular imprinting selective fluorescence quenching method, which can solve the problems existing in the prior art that it cannot work on site, the analysis duration is long, the analysis process is complicated, the conditions are harsh, Large energy consumption, especially secondary pollution and other issues

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] Such as figure 2 As shown, the device used in the present invention includes a three-way sampling valve 10, an enrichment column 11, a fluorescent flow cell 13, an excitation light source 15, a photoelectric detection device 16, a control device 18, a data processing device 17, a water sample pump 3, Buffer solution pump 5, sodium ethylenediamine tetramethylene phosphate pump 6, and eluent pump 9. Water sample 1 and blank solution 2 can be passed into the pipeline under the action of water sample pump 3, buffer solution 4 can be passed into the pipeline under the action of buffer solution pump 5, complexing agent 6 can be passed through under the action of complexing agent pump 7 Into the pipeline, the eluent 8 can be passed into the pipeline under the action of the eluent pump 9, the pumps used are peristaltic pumps, the three-way sam...

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 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.

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

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64
Inventor 高杨刘岩王昭玉王茜程岩曹煊孔祥峰郭翠莲曹璐张艳敏高楠
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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