Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Intelligent bending double hydrogel for visual detection of heavy metal ions and preparation method and application thereof

A heavy metal ion and intelligent technology, applied in the field of hydrogel, can solve the problems of high requirements for instrument personnel, insufficient resolution of hydrogel method, time-consuming and laborious detection of heavy metal ions, etc., and achieve the effect of low cost and convenient operation

Inactive Publication Date: 2013-01-02
JIANGSU TONGHAI THREAD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of time-consuming and labor-intensive detection of heavy metal ions in the prior art, high requirements for instrument personnel, and insufficient resolution of the hydrogel method, the present invention provides an intelligent bending double glue for heavy metal ion detection and its preparation method and application. , with the advantages of high sensitivity, convenient and fast

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
  • Intelligent bending double hydrogel for visual detection of heavy metal ions and preparation method and application thereof
  • Intelligent bending double hydrogel for visual detection of heavy metal ions and preparation method and application thereof
  • Intelligent bending double hydrogel for visual detection of heavy metal ions and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of intelligent bending double glue for heavy metal ion detection, the steps are:

[0028] The first step, the preparation of the sensitive hydrogel film: the monomer of the hydrogel, the cross-linking agent, the sensitive element, and the initiator are dissolved in water at a molar ratio of 30:1:10:0.5, until they are mixed with water The weight-to-volume ratio is 8%, added to the polymerization mold and polymerized to form a sensitive hydrogel film; the sensitive element is a molecule containing mercapto and alkenyl capable of complexing heavy metal ions, such as 4-vinyl-2-mercapto Pyridine, acryloylcysteine, etc.

[0029] The second step, the preparation of non-sensitive hydrogel film: the monomer of hydrogel, cross-linking agent, initiator are dissolved in water in a molar ratio of 30:1:0.5, until the weight-to-volume ratio with water is 8 %, added to the polymerization mold and polymerized to form a non-sensitive hydrogel film;

[0030] In the...

Embodiment 2

[0033] The preparation of the standard spectrum for the semi-quantitative visual detection of different ions, the steps are:

[0034] The first step is to accurately weigh and prepare a set of solutions containing various heavy metal ions with different concentrations;

[0035] In the second step, put the intelligent bending double glue for the detection of broad-spectrum heavy metal ions preserved in pure water into the above-prepared solution, shake for 10 minutes, and take pictures to record the degree of bending. Figure 1~3 The degree of bending shown in solutions containing different concentrations of lead, cadmium, and mercury ions is used as a standard spectrum for semi-quantitative visual detection of different heavy metal ions,

[0036] In the third step, put the washed intelligent bending double glue in the liquid to be tested, observe the change of its bending degree, and then compare the standard spectrum obtained in the second step to know the general concentrati...

Embodiment 3

[0038] Broad-spectrum heavy metal ion detection:

[0039] The broad-spectrum heavy metal ion detection that preserves in pure water is put into the solution to be tested with intelligent bending double glue, shakes for 10 minutes, compares the standard spectrum in the example 2, by the example 2 Figure 1~3It can be seen that although the metal ions in the solution are different, the response of the smart curved double glue to different metal ions at the same concentration is not much different, so the semi-quantitative visual detection of heavy metal ions can be realized by comparing with the standard spectrum .

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an intelligent bending double hydrogel for visual detection of heavy metal ions and a preparation method and application thereof. The intelligent bending double hydrogel is formed by bonding a layer of sensitive hydrogel and a layer of non-sensitive hydrogel, and the preparation method comprises the following steps: dissolving monomers of the hydrogel, a cross-linking agent, a sensing element and an initiator in the mol ratio of 100-10:1-0.1:10-1:1-0.1 in water till the weight-to-volume ratio is 4-30% to prepare a sensitive hydrogel by polymerization; dissolving monomers of the hydrogel, a cross-linking agent and an initiator in the mol ratio of 100-10:1-0.1:10-0.1 in water till the weight-to-volume ratio is 4-30% to prepare a non-sensitive hydrogel by polymerization; and bonding the sensitive hydrogel with the non-sensitive hydrogel together to form the intelligent bending double hydrogel for visual detection of the heavy metal ions. The invention can be used for the semi-quantitative visual detection of the heavy metal ions.

Description

technical field [0001] The invention relates to a hydrogel, in particular to a hydrogel suitable for detecting heavy metal ions, a preparation method thereof and an application in visual detection of heavy metal ions. Background technique [0002] Water pollution by heavy metal ions poses a very serious threat to the health of humans and other organisms. For example, when mercury ions, cadmium ions, and chromium ions are dissolved in water, the physical properties such as color, odor, clarity, and viscosity of the water body will not change significantly, and it is very difficult to identify them with the naked eye, which can easily cause harm to humans and other organisms. Misuse and misuse, and a very small amount of these ions will affect the normal physiological activities of humans and other organisms, seriously endangering health. [0003] At present, the commonly used national industry standards for detecting heavy metal ions in water use photoelectrochemical detecti...

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): G01N33/20C08F220/56
Inventor 董健黄素雯谢丽张薇张春生钱卫平
Owner JIANGSU TONGHAI THREAD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com