Polymer ratio fluorescence sensor with sulfur dioxide recognition function as well as preparation method and application of polymer ratio fluorescence sensor

A sulfur dioxide, ratio fluorescence technology, applied in chemical instruments and methods, fluorescence/phosphorescence, instruments, etc., can solve the problems of photobleaching damage of spiropyran molecules, increase biological toxicity, object damage, etc., and achieve convenient and cost-effective post-processing. The effect of low investment and simple synthesis route

Pending Publication Date: 2022-06-24
HUNAN UNIV OF SCI & TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these fluorescent probes detect SO 2 When irradiating with ultraviolet light at 365nm, the spiropyran ring is opened, and the double bond can be exposed before it can be combined with SO 2 Response, which will undoubtedly cause photobleaching damage to t

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
  • Polymer ratio fluorescence sensor with sulfur dioxide recognition function as well as preparation method and application of polymer ratio fluorescence sensor
  • Polymer ratio fluorescence sensor with sulfur dioxide recognition function as well as preparation method and application of polymer ratio fluorescence sensor
  • Polymer ratio fluorescence sensor with sulfur dioxide recognition function as well as preparation method and application of polymer ratio fluorescence sensor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1: Preparation of a polymer ratio fluorescence sensor with sulfur dioxide recognition function, the specific steps are as follows:

[0036] (1) Dissolve 4,5-dimethyl-4-azaadamantane iodonium salt (1 mmol) and 5-nitrosalicylaldehyde (1.2 mmol) prepared according to the prior art in 20 mL of absolute ethanol, add Piperidine (1.19 mmol) on N 2 Under the conditions of protection and dark, reflux for 12h, after the reaction, 85-95% of the solvent is removed by rotary evaporation, the product is purified by column separation, and dried in vacuum to obtain the target molecule.

[0037] (2) Take the target molecule synthesized in step (1) and prepare it into 1 mg / mL tetrahydrofuran (THF) solution A, take poly[9,9-dihexylfluorenyl-2,7-diyl] prepared according to the prior art Be prepared into the tetrahydrofuran (THF) solution B of 1 μg / mL, get the polyethylene oxide-co-polystyrene prepared according to the prior art and prepare the tetrahydrofuran (THF) solution C of 1...

Example Embodiment

[0038] Embodiment 2: the preparation of a polymer ratio fluorescence sensor with sulfur dioxide recognition function, the specific steps are as follows:

[0039] (1) 4,5-dimethyl-4-azaadamantane iodonium salt (0.5mmol) and 5-nitrosalicylaldehyde (0.6mmol) prepared according to the prior art were dissolved in 20mL of absolute ethanol, Piperidine (0.595 mmol) was added and placed under N 2 Under the conditions of protection and dark, reflux for 12h, after the reaction, 85-95% of the solvent is removed by rotary evaporation, the product is purified by column separation, and dried in vacuum to obtain the target molecule.

[0040] (2) Take the target molecule synthesized in step (1) and prepare it into 0.5 mg / mL tetrahydrofuran (THF) solution A, take poly[9,9-dihexylfluorenyl-2,7-diyl prepared according to the prior art ] be mixed with the tetrahydrofuran (THF) solution B of 0.5 μg / mL, get the polyethylene oxide-co-polystyrene prepared according to the prior art and be mixed with ...

Example Embodiment

[0041] Embodiment 3: the preparation of a polymer ratio fluorescence sensor with sulfur dioxide recognition function, the specific steps are as follows:

[0042] (1) 4,5-dimethyl-4-azaadamantane iodonium salt (1.5mmol) and 5-nitrosalicylaldehyde (1.8mmol) prepared according to the prior art were dissolved in 20mL of absolute ethanol, Piperidine (1.785 mmol) was added and placed under N 2 Under the conditions of protection and dark, reflux for 12h, after the reaction, 85-95% of the solvent is removed by rotary evaporation, the product is purified by column separation, and dried in vacuum to obtain the target molecule.

[0043] (2) Take the target molecule synthesized in step (1) and prepare it into 1.5 mg / mL tetrahydrofuran (THF) solution A, take poly[9,9-dihexylfluorenyl-2,7-diyl prepared according to the prior art ] Be mixed with the tetrahydrofuran (THF) solution B of 1.5 μg / mL, get the polyethylene oxide-co-polystyrene prepared according to the prior art and be mixed with ...

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 polymer ratio fluorescence sensor with a sulfur dioxide recognition function as well as a preparation method and application thereof, the fluorescence sensor is prepared from polyethylene oxide-co-polystyrene, poly [9, 9-dihexylfluorenyl-2, 7-diyl], 4, 5-dimethyl-4-aza adamantane iodized salt prepared according to the prior art, and the polymer ratio fluorescence sensor with the sulfur dioxide recognition function is prepared through a one-step method. The invention relates to a novel polymer ratio fluorescence sensor prepared by taking 2, 5-nitrosalicylaldehyde as a raw material. The polymer fluorescence sensor can realize high-selectivity and high-sensitivity rapid ratio detection of sulfur dioxide in a pure water solution. Compared with the existing fluorescence detection technology, the obtained fluorescence sensor has the advantages of high sulfur dioxide selectivity, rapid response, low input cost, simple synthesis route and the like, and is suitable for amplified synthesis and actual production application; the method has a huge application prospect in the technical fields of analytical chemistry, life science, food science, environmental science and the like.

Description

technical field [0001] The invention belongs to the field of chemical material preparation, analysis and detection, and relates to the preparation and application of a fluorescence sensor capable of ratiometrically detecting sulfur dioxide, in particular to a polymer ratio fluorescence sensor with sulfur dioxide identification function, a preparation method and application. Background technique [0002] It is well known that sulfur dioxide (SO 2 ), as sulfur oxides, is a toxic gaseous pollutant to the environment, but because sulfur dioxide and its derivatives have the properties of bleaching, preventing enzymatic browning, antibacterial, and antioxidation, they are often used in food additives and anti-oxidants. Oxidizers are valuable commercial additives and are widely used in the preservation of fresh fruits and vegetables, food and pharmaceuticals, winemaking and other industries. Also, SO 2 and derivatives thereof can also be produced endogenously from the metabolism ...

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): C09K11/06G01N21/64
CPCC09K11/06G01N21/6428C09K2211/1029C09K2211/1416C09K2211/1425
Inventor 陈建李想李钰琪张培盛张崇华
Owner HUNAN UNIV OF SCI & TECH
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