Unlock instant, AI-driven research and patent intelligence for your innovation.

Soluble starch-chitosan modified glassy carbon electrode and its application

A glassy carbon electrode and soluble technology, applied in the field of electrochemistry, can solve problems such as difficult to distinguish L/D amino acid enantiomers, achieve good qualitative and quantitative analysis application prospects, stable current response, and good stability

Inactive Publication Date: 2020-01-10
CENT SOUTH UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the two chiral isomers have nearly identical chemical and physical properties, it is difficult to distinguish L / D amino acid enantiomers

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
  • Soluble starch-chitosan modified glassy carbon electrode and its application
  • Soluble starch-chitosan modified glassy carbon electrode and its application
  • Soluble starch-chitosan modified glassy carbon electrode and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Mix 5mg of soluble starch and 20mL of ultrapure water, react at 120°C for 20min, cool the solution naturally to room temperature, and set aside.

[0038] 100mg chitosan was prepared into 1mg mL with glacial acetic acid (1%, v / v) aqueous solution -1 ,stand-by.

[0039] The soluble starch solution and chitosan solution were mixed at a ratio of 1:1 (v / v) and then ultrasonicated for 30 min.

[0040] Pipette 8 μL of soluble starch-chitosan composite material drop-coated on the surface of the glassy carbon electrode, and let it dry in the air.

Embodiment 2

[0042] Mix 20mg of soluble starch and 40mL of ultrapure water, react at 130°C for 60min, cool the solution naturally to room temperature, and set aside.

[0043] Add 50mg chitosan to dilute hydrochloric acid solution (5%, v / v) to prepare 5mg mL-1 ,stand-by.

[0044] The soluble starch solution and chitosan solution were mixed at a ratio of 10:1 (v / v) and then ultrasonicated for 60 min.

[0045] Pipette 10 μL of soluble starch-chitosan composite material drop-coated on the surface of the glassy carbon electrode, and dry it under an infrared lamp.

Embodiment 3

[0047] Mix 10 mg of soluble starch and 5 mL of ultrapure water, react at 100°C for 10 min, and cool the solution naturally to room temperature.

[0048] Add 200mg chitosan to the aqueous solution of dilute sulfuric acid solution (0.1%, v / v) to prepare 3mg mL -1 ,stand-by.

[0049] The soluble starch solution and chitosan solution were mixed at a ratio of 5:1 (v / v) and then ultrasonicated for 10 min.

[0050] Pipette 2 μL of soluble starch-chitosan composite material drop-coated on the surface of the glassy carbon electrode, and dry it in a nitrogen stream.

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 soluble starch-chitosan modified glassy carbon electrode and application thereof. The soluble starch-chitosan modified glassy carbon electrode is prepared by the following steps: mixing a soluble starch solution and a chitosan solution and ultrasonically preparing a composite material, dispensing the composite material on the surface of a glassy carbon electrode, and airing, thereby obtaining the soluble starch-chitosan modified glassy carbon electrode. By effectively utilizing film-forming abilities of the soluble starch and chitosan, the soluble starch-chitosan modified glassy carbon electrode is capable of realizing recognition of amino acid enantiomers, particularly recognition of amino acid enantiomers such as tyrosine, tryptophan, histidine, phenylalanine, proline and the like.

Description

technical field [0001] The invention relates to the technical field of electrochemistry, in particular to a soluble starch-chitosan modified glassy carbon electrode and its application, especially the application of using the soluble starch-chitosan modified glassy carbon electrode to detect amino acid enantiomers. Background technique [0002] Chirality is a chemical property that plays an important role at the molecular level in fields such as biology, medical science and biotechnology. With the exception of glycine, almost all amino acids have chiral characteristics. Therefore, these amino acids can serve as important biomarkers for various metabolic diseases. Since the two chiral isomers have nearly identical chemical and physical properties, it is difficult to distinguish L / D amino acid enantiomers. To screen, diagnose, and treat metabolic diseases, developing an efficient, sensitive, and selective quantitative assay is an important task. [0003] Starch is a long-ch...

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): G01N27/48G01N27/30
CPCG01N27/308G01N27/48
Inventor 邹娇于金刚陈晓青
Owner CENT SOUTH UNIV