A kind of fluoride ion polymer membrane potentiometric sensor and its application

A polymer membrane and potential-type technology, applied in the field of analysis and testing, can solve the problems of slow development of anion electrodes, etc., and achieve the effects of easy miniaturization, simple manufacture, and simple structure

Active Publication Date: 2018-10-23
YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a variety of cation-sensitive polymer membrane electrodes have been developed and widely used in environmental monitoring, the development of anion electrodes is relatively slow

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 kind of fluoride ion polymer membrane potentiometric sensor and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take the detection of fluoride ion as an example. The operation steps are as follows:

[0023] The polymer film potential type sensor is a polymer film doped with tetraphenyl antimony bromide as the ion carrier adhered to the electrode substrate; it uses tetraphenyl antimony bromide as the ion carrier and the cation exchanger as the ion site, specifically preparation:

[0024] Weigh 196mg of polyvinyl chloride, 196mg of o-nitrophenyloctyl ether, 4.0mg of tetraphenylantimony bromide and 2.5mg of tetrakis(3,5-bis(trifluoromethyl)phenyl)sodium borate and dissolve in 3.0mL of tetrahydrofuran , stirred evenly and poured into a glass ring with an inner diameter of 3.5 cm fixed on a glass plate. After the tetrahydrofuran was volatilized, the membrane was cut into small discs with an inner diameter of 3 mm using a puncher and pasted on the tip of a pipette with a PVC tube at the bottom. A glycine buffer solution (containing 10 mM NaCl) with a pH of 3.0 is used in the PVC tub...

Embodiment 2

[0036] Take the detection of fluoride ion as an example. The operation steps are as follows:

[0037] The polymer film potential type sensor is a polymer film doped with tetraphenyl antimony bromide as the ion carrier adhered to the electrode substrate; it uses tetraphenyl antimony bromide as the ion carrier and the cation exchanger as the ion site, specifically preparation:

[0038] Weigh 196mg of polyvinyl chloride, 196mg of dioctyl phthalate, 4.0mg of tetraphenyl antimony bromide and 4.0mg of chromogenic ionophore IV and dissolve them in 3.0mL of tetrahydrofuran. In a glass ring with an inner diameter of 3.5 cm. After the tetrahydrofuran was volatilized, the membrane was cut into small discs with an inner diameter of 3 mm using a puncher and pasted on the tip of a pipette with a PVC tube at the bottom. A glycine buffer solution (containing 10 mM NaCl) with a pH of 3.0 is used in the PVC tube as the inner filling solution and the activation solution to activate the electr...

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 belongs to the technical field of analytical tests, and particularly relates to a fluorinion polymer film potential type sensor and application thereof.In the fluorinion polymer film potential type sensor, tetraphenyl antimony bromide serves as an ion carrier, and a cation exchanger serves as an ion site.The fluorinion polymer film potential type sensor can detect fluorinion in a water body.The sensor is simple in structure, low in cost and high in sensitivity and has good practical application prospects.

Description

technical field [0001] The invention belongs to the technical field of analysis and testing, and in particular relates to a fluoride ion polymer membrane potential sensor and its application. Background technique [0002] Fluoride ions are often added to toothpaste as an active ingredient, but excessive fluoride ions will disturb the normal physiological functions of the human body and cause pathological changes. On the other hand, fluoride ions are also often used as indicators to detect specific types of organophosphorus poisonous gases in the environment. Therefore, the detection of fluoride ion has important physiological and environmental significance. The current fluoride ion sensors mostly use spectroscopic instruments as signal readout methods. These methods are easily interfered by turbidity and chromaticity, and the instrument structure is complex and costly, which is not suitable for rapid and on-site detection. It is still a difficult problem to develop a fluor...

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): G01N27/26G01N27/333
CPCG01N27/26G01N27/3335
Inventor 秦伟李龙
Owner YANTAI INST OF COASTAL ZONE RES CHINESE 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