Modified electrode for detecting hydroquinone and catechol

A technology of catechol and hydroquinone, which is applied in the field of electrochemical detection and can solve the problems of distinguishing detection and difficulty between the two and the like

Inactive Publication Date: 2014-01-29
NORTHWEST NORMAL UNIVERSITY
View PDF1 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing technology is difficult to distinguish and detect the two when hydroq

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
  • Modified electrode for detecting hydroquinone and catechol
  • Modified electrode for detecting hydroquinone and catechol
  • Modified electrode for detecting hydroquinone and catechol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) L-tryptophan functionalized graphene

[0027] Dissolve 100 mg of L-tryptophan in 5 mL of formic acid, sonicate in a water bath until completely dissolved, add 5 mg of graphene (purchased from Nanjing Xianfeng Nano Material Technology Co., Ltd. Ultrasonic 4h. The mixture was centrifuged at 10,000rpm for 20 minutes at high speed to separate and remove the supernatant, and the rest was mixed with water and ultrasonicated for 10 minutes, centrifuged to remove the supernatant and washed repeatedly for 3-4 times, and finally made L-color with a concentration of 0.2mg / ml Amino acid functionalized graphene dispersion.

[0028] figure 2 Raman spectra of graphene and L-tryptophan functionalized graphene. I D / I G It is generally considered to be proportional to the defects on graphitic carbon. From the figure, it can be concluded that the I of graphene and L-tryptophan functionalized graphene D / I G are 0.97 and 1.15, respectively, which shows that the surface area of...

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 field of electrochemical detection and discloses a modified electrode for detecting hydroquinone and catechol. The modified electrode comprises a substrate electrode as well as graphene treated by L-tryptophan and attached on the substrate electrode. The modified electrode disclosed by the invention can be used for respectively detecting the hydroquinone and the catechol in a quantitative manner without a mutual interference problem, wherein a detecting linear range of the catechol is 5*10<-6>mol/L-3*10<-4>mol/L, and detecting limit is 1.45*10<-7>mol/L; and the detecting linear range of the hydroquinone is 5*10<-6>mol/L-5*10<-4>mol/L, and the detecting limit is 1.69*10<-7>mol/L.

Description

technical field [0001] The invention belongs to the field of electrochemical detection, in particular to a modified electrode for detecting hydroquinone and catechol. Background technique [0002] Hydroquinone is an important chemical raw material. It is widely used in cosmetics, leather, pesticides, seasonings, pharmaceuticals and synthetic dyes in daily production and life. Hydroquinone and catechol are two kinds of quinone. Isomers, as highly toxic environmental pollutants, usually exist in environmental samples, which are very harmful to human body and environment. Hydroquinone can cause fatigue, headaches, and kidney damage, and catechol can cause decreased liver function. Some methods have previously been reported to accurately detect these two isomers of hydroquinone, but hydroquinone and catechol have similar structures and properties, making simultaneous detection difficult. It has been recently reported that the methods for simultaneously detecting these two subs...

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): G01N27/30G01N27/48
Inventor 蒋欢张东霞何志芳连茜雯周喜斌卢小泉
Owner NORTHWEST NORMAL UNIVERSITY
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