Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for synergically enriching and detecting naphthol isomers

A technology of isomers and naphthols, which is applied in the detection field of naphthol isomers, can solve the problems of complex detection process, high cost, and long detection cycle, and achieve the effect of improving sensitivity

Active Publication Date: 2015-04-29
JIANGNAN UNIV
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the determination methods of naphthol isomers reported at home and abroad mainly include high performance liquid chromatography, gas chromatography, gas chromatography-mass spectrometry tandem method, fluorescence spectroscopy, immunoassay, etc., but all have their own limitations, such as The detection process is complicated, the cost is high, the detection cycle is long, etc.

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
  • Method for synergically enriching and detecting naphthol isomers
  • Method for synergically enriching and detecting naphthol isomers
  • Method for synergically enriching and detecting naphthol isomers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention is further described in conjunction with the examples, but the invention is not limited to the examples.

[0018] (1) When the time of electrochemically reducing graphene oxide increased from 150s to 250s, as the amount of electrochemically reduced graphene oxide on the polymerization increased, the modified surface area increased, and α-naphthalene was detected by differential pulse voltammetry. The oxidation peak currents of phenol and β-naphthol increased gradually, and the enrichment efficiency increased accordingly. When the electroreduction time reached 250s, the peak currents of both reached the maximum.

[0019] (2) The effect of enrichment potential on the oxidation peak current of naphthol isomers. When the enrichment potential changes from -0.5V to +0.1V, the peak currents of α-naphthol and β-naphthol increase obviously. Because naphthol is weakly acidic, it is easy to dissociate in aqueous solution to form naphthalene Oxygen anion, whe...

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
Sensitivityaaaaaaaaaa
Sensitivityaaaaaaaaaa
Login to View More

Abstract

The invention provides a high-sensitivity high-specificity detection method of two naphthol isomers (alpha-naphthol and beta-naphthol). The method comprises the following steps: preparing a reduced graphene-oxide-modified glassy carbon electrode from a sodium perchlorate solution of graphene oxide by electrochemical reduction; in a phosphate buffer solution, enriching the naphthol isomers (alpha-naphthol and beta-naphthol) in the sample by electromigration enrichment and pi-pi conjugation synergic enrichment, and simultaneously detecting the alpha-naphthol and beta-naphthol enriched on the electroreduced graphene-oxide-modified glassy carbon electrode by cyclic voltammetry and differential pulse voltammetry. The method utilizes the advantages of superhigh electric conductivity, superlarge specific area, conjugate pi system and the like of the electroreduced graphene oxide, and uses the electromigration / pi-pi conjugation synergic enrichment, thereby greatly enhancing the detection sensitivity.

Description

Technical field: [0001] The invention belongs to the fields of environmental science and food safety, and in particular relates to a method for detecting naphthol isomers. Background technique: [0002] Naphthol is an important class of industrial raw materials, widely used in dyes, pesticides, medicines, spices, etc., and it is also a class of environmental pollutants, widely distributed in air, water, soil, food and other environments, its biological The effective part can be enriched and transmitted through the food chain, which has brought great harm to organisms and humans. Naphthol is a moderately toxic substance, which has strong irritating effects on eyes, skin and mucous membranes, and has potential toxicity of sensitization, carcinogenicity, teratogenicity and mutagenicity. At present, my country is the main producer and exporter of naphthol in the world. Many domestic dye factories, pesticide factories, pharmaceutical factories and other production processes will...

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): G01N27/48G01N27/30
Inventor 庞月红张伊丁洪流沈晓芳
Owner JIANGNAN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com