Sensor for detecting phosphorus containing pesticides and manufacture and use methods thereof

A sensor and phosphorus pesticide technology, applied in the field of nano-sensors, can solve the problems of limiting rapid detection methods, complex processing instruments, etc., and achieve the effects of good water solubility, good sensitivity and low cost

Inactive Publication Date: 2016-06-29
LANZHOU UNIVERSITY
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These commonly used methods often require complex processing and expe

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
  • Sensor for detecting phosphorus containing pesticides and manufacture and use methods thereof
  • Sensor for detecting phosphorus containing pesticides and manufacture and use methods thereof
  • Sensor for detecting phosphorus containing pesticides and manufacture and use methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The following are examples of the present invention.

[0031] One, the preparation method of the hybrid nanosensor matrix of the present invention is as follows:

[0032] (1) Preparation of sulfonated calixarene

[0033] a. Synthesis of p-tert-butylcalix[4]arene

[0034] Add 20g of p-tert-butylphenol, 0.24g of sodium hydroxide and 12.5mL (37%) formaldehyde into a 500mL round bottom flask, add a water separator, the reaction temperature is 110-120°C, use a water separator to separate water, and react 2- 3h, when the solution becomes viscous, stop heating, cool to room temperature, add 200mL diphenyl ether, and add 40mL ethyl acetate to it, the reaction temperature rises to about 140°C, divide the water for 0.5-1h, and then the reaction rises To 260°C, reflux for 2-3h, stop the reaction, cool to room temperature, add 150mL ethyl acetate, stir for 0.5h, a solid precipitates, rinse twice with 20mL ethyl acetate, wash with 20mL glacial acetic acid and 20mL water, dry, Rec...

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 super-molecule assembled carbon quantum dot nano sensor for detecting phosphorus containing pesticides and manufacture and use methods thereof. The fluorescent nano sensor takes alkyl ammonium carbon quantum dots assembled at the surfaces of nano particles of sulfonatocalixarene as a substrate, and terbium ions are coordinated on the surface of the nano particles in situ. When the sensor is used for detection, whether a detected pesticide contains phosphorus can be determined according to the change of characteristic emission peaks of terbium ions in a detection result. The sensor has the advantages of being low in cost and simple in detection operation, is free of any toxicity as excellent water soluble matter, and is high in detection sensitivity.

Description

technical field [0001] The invention relates to a nanometer sensor, a preparation method and a use method of the sensor. Specifically, the invention relates to a carbon quantum dot nanometer sensor capable of detecting phosphorus-containing pesticides and a supramolecular assembly, and a preparation and use method. Background technique [0002] Pesticides refer to chemical substances used to eliminate harmful organisms that affect the yield of agriculture, forestry and animal husbandry. Pesticides can also regulate the growth of plants. Some classes of pesticides are widely used in agricultural production, such as organophosphorus, carbamate, organochlorine and pyrethroid pesticides. However, the health and food safety problems caused by pesticide residues are important issues of general concern to the society. The non-standard management and use of pesticides seriously threaten the safety of food and agricultural ecological environment, and have potential harm to human hea...

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): G01N21/64C07C309/43C09K11/06
CPCC07C309/43C09K11/06C09K2211/1011G01N21/64
Inventor 唐瑜谢雨洁
Owner LANZHOU UNIVERSITY
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