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

Fluorescent sensor for magnesium ions and preparation method thereof

A fluorescent sensor and magnesium ion technology, applied in the direction of fluorescence/phosphorescence, material excitation analysis, etc., can solve the problems of thin-film fluorescence sensor research weakness, etc., and achieve the effect of improving thermal stability and pH application range, not easy to aging, and good selectivity

Inactive Publication Date: 2012-07-11
BEIJING UNIV OF CHEM TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the research on thin-film fluorescent sensors is still very weak, and most of the research is still in the research stage.

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
  • Fluorescent sensor for magnesium ions and preparation method thereof
  • Fluorescent sensor for magnesium ions and preparation method thereof
  • Fluorescent sensor for magnesium ions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] a. Preparation of hydrotalcite precursor: adopt hydrothermal method, weigh 53.55g Zn(NO 3 ) 2 ·6H 2 O and 33.75gAL(NO 3 ) 3 9H 2 O dissolved in 100ml to remove CO 2 Prepare a saline solution in water; another 21.6g NaOH is dissolved in 100ml to remove CO 2 Prepare NaOH solution in water; add the salt solution and NaOH solution into a high-speed stirring colloid mill and stir for 1 minute to obtain a slurry; place the slurry in a pressure melting bomb, react at 110°C for 10 hours, and centrifuge and wash the product; The chemical formula of the prepared hydrotalcite precursor is Zn 2 Al(OH) 6 (NO 3 )·6H 2 O;

[0024] b. the preparation concentration is 1-naphthylamine-3,6,8-trisulfonic acid solution of 3g / L, after adjusting the pH value of the solution with sodium hydroxide to be 6.5, add the hydrotalcite precursor prepared by 0.5g step a, in N 2 Stir under protection, react at 25°C for 48 hours, the product uses CO 2 Washing with water and centrifuging to ob...

Embodiment 2

[0036] a. with the step a of embodiment 1;

[0037] b. the preparation concentration is 1-naphthylamine-3,6,8-trisulfonic acid solution of 5g / L, the hydrotalcite precursor that 0.8g step a prepares after adding the hydrotalcite precursor of 0.8g step a with sodium hydroxide regulator solution pH value, in N 2 Stir under protection, react at 28°C for 48 hours, the product uses CO 2 Washing with water and centrifuging to obtain 1-naphthylamine-3,6,8-trisulfonic acid intercalated hydrotalcite;

[0038] c. Take 1 g of 1-naphthylamine-3,6,8-trisulfonic acid intercalated hydrotalcite prepared in step b, dissolve it in 80 ml of ethanol solution and sonicate for 6 minutes, put the mixed solution in a high-speed centrifuge, and set the speed at 7500 rpm / min, centrifuged for 6 minutes, and took the upper colloidal solution;

[0039] d. Take 20ml of the upper colloidal solution obtained in step c and place it in the electrochemical deposition liquid pool. 2 The conductive glass FTO s...

Embodiment 3

[0041] a. with the step a of embodiment 1;

[0042] b. the preparation concentration is 1-naphthylamine-3,6,8-trisulfonic acid solution of 8g / L, the hydrotalcite precursor that adds 0.2g step a preparation after adding the hydrotalcite precursor of 0.2g step a with sodium hydroxide regulator solution pH value, in N 2 Stir under protection, react at 30°C for 48 hours, the product uses CO 2 Washing with water and centrifuging to obtain 1-naphthylamine-3,6,8-trisulfonic acid intercalated hydrotalcite;

[0043] c. Take 1 g of 1-naphthylamine-3,6,8-trisulfonic acid intercalated hydrotalcite prepared in step b, dissolve it in 90 ml of ethanol solution and sonicate for 12 minutes, put the mixed solution in a high-speed centrifuge, and set the speed at 7500 rpm / min, centrifuged for 9 minutes, and got the upper colloidal solution;

[0044] d. Take 20ml of the upper colloidal solution obtained in step c and place it in the electrochemical deposition liquid pool. 2 The conductive gla...

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 fluorescent sensor for magnesium ions, which is made of an organic-inorganic composite material, and a preparation method thereof, and belongs to the technical field of fluorescent sensor preparation. Due to exchangeability of anions among hydrotalcite layers, 1-naphthylamine-3,6,8-trisulfonic acid is inserted among the hydrotalcite layers through an ion exchange method,a film is prepared by an electrochemical deposition method, and the fluorescence response of a film sensor to the magnesium ions is examined. In the prepared fluorescent sensor for the magnesium ions, the hydrotalcite is nontoxic and stable, and has high biocompatibility; different from a polymer carrier, an inorganic laminate of the hydrotalcite is difficult to age and can be stored for a long time so as to keep the optical stability of fluorescent ions and obviously improve the thermal stability of the fluorescent ions; and the sensor has high selectivity for the magnesium ions, shows a linear relationship in a certain range, and has repeated operability.

Description

technical field [0001] The invention belongs to the technical field of fluorescence sensor preparation, and in particular provides an organic-inorganic composite material as a magnesium ion fluorescence sensor and a preparation method thereof. Background technique [0002] Fluorescence sensors have attracted people's attention due to their high sensitivity, rich signal collection and convenient use, and have been developed rapidly in recent years. Fluorescence sensors are mainly divided into two categories, namely, homogeneous fluorescence sensors used in solution and thin-film fluorescence sensors that are easily reusable and capable of gas-phase sensing. In recent years, research on thin-film fluorescence sensors has received special attention. [0003] Borrowing the principle of homogeneous fluorescent chemical sensors, designing and preparing thin-film fluorescent sensors is an effective way to push fluorescent sensors to practical applications or expand their applicati...

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 靳兰郭志洁何丹丹卫敏
Owner BEIJING UNIV OF CHEM TECH
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