Dissertation > Excellent graduate degree dissertation topics show

Poly- amino acid modified electrode in Electroanalytical Chemistry

Author: ChenXiaoYin
Tutor: WangZongHua
School: Qingdao University
Course: Analytical Chemistry
Keywords: Sulfanilic Modified electrode Carbon Nanotubes Silver Rutin Quercetin
CLC: O657.1
Type: Master's thesis
Year: 2010
Downloads: 138
Quote: 0
Read: Download Dissertation

Abstract


Polyamino acid because of its excellent environmental stability , electrical conductivity, a wide pH range of electrochemical activity , become a hot research . Carbon nanotubes (CNT) not only has good electrical conductivity , large specific surface area , high stability , and to use it as an electrode material can be modified to promote the electron transfer reaction . In this work, poly- amino acid as a major modification of the electrode materials studied flavonoids drugs in the poly amino acid modified electrode electrochemical behavior of carbon nanotubes and poly- amino acid composite film modified electrode synergistic catalytic effect of uric acid , as well as silver -doped poly- amino acid modified electrochemical behavior . By electrochemical polymerization of poly -amino acid modified glassy carbon electrode , rutin and quercetin were investigated in this modified electrode electrochemical behavior . Both can be effectively enriched modified electrode and produce a sensitive oxidation peak was calculated both in the modified electrode electrochemical parameters ks and α. π-π key role in making flavonoids on drug adsorption and enrichment of sulfanilic acid to produce sensitive electrochemical signals. Under the optimum conditions, the establishment of rutin and quercetin sensitive electrochemical detection method used successfully in real samples . Preparation of poly -amino acid / carbon nanotube composite film modified electrode was studied uric acid and ascorbic acid in the modified electrode electrochemical behavior . Amino acid and carbon nanotubes with polyethylene monolayer modified electrode compared to both a significant increase in the oxidation peak current , peak potential difference reaches 337 mV. Showed that carbon nanotubes and polymers to create synergies . Carbon nanotubes and polymer conjugate action occurs dimers , improved modified electrode sensitivity and selectivity. Doped with silver as the body , the use of cyclic voltammetry method to silver -doped poly- amino acid modified glassy carbon electrode was studied the electrochemical properties of the modified electrode and H2O2 in the electrochemical behavior . In PBS at pH 7.0 , H2O2 produced a sensitive reduction peak , indicating that the modified electrode has good reduction of H2O2 catalysis . Established a sensitive detection of H2O2 electrochemical methods , methods for the determination of H2O2 in milk , with satisfactory results.

Related Dissertations

  1. Investigation on Microstructure and Properties of Cadmium-Free Silver-Based Intermediate Temperature Filler Metals,TG425.2
  2. Electroporation Assisted Surface-enhanced Raman Spectroscopy for Living Cells,R318.51
  3. Preliminary Study of Phosphorylation Effect on UGT1A3 Metabolism Activity Towards Drugs,R346
  4. Some Fluorescence Quenching Spectral Analysis Interacted with Bio-related Molecules,X832
  5. The Application of Eggshell Membrane for Solid-phase Extraction and the Determination of Trace Metal Elements in Environment Water,X832
  6. Preparation, Characterization and Application of Prussian Blue Composite Nanomaterials,TB383.1
  7. Carbon Nanotubes Compound Polymer Film Modified Electrode and Its Application for Electroanalytical Chemistry,O657.1
  8. Spectral and Electrochemical Research of Epirubicin Hydrochloride with Its Analytical Application,TQ465
  9. Research on Detection of the Carbamate Pesticides by Aminoacids-matal Ions Films Chemically Modified Sencor,S481.8
  10. The Effect of Hepatic Denervation on Liver Regeneration after Partially Hepatectomy in Rats,R363
  11. Effects of Quercetin on Human Bladder Cancer Cells (EJ) and STAT3 Signaling Pathway,R737.14
  12. Antibacterial fabric antibacterial effect against common dermatophytes experimental study,R758.5
  13. Taxifolin , quercetin on LPS-induced abortion mouse macrophages affect the uterus,R285.5
  14. Anterior crowns analysis of the clinical effects,R783.4
  15. SnO 2 / CNTs composite Controllable Preparation and Gas Sensitivity Study,TB383.1
  16. MWCNTs and ZnO / SnO 2 Composites and NO gas research,TB33
  17. Study on the Volume Hologram Reconstructed by Laser,O438.1
  18. Synthesis of Silver Nanoparticles on Modified Multi-walled Carbon Nanotubes and Their Antimicrobial Effects,TB383.1
  19. Preparation of Functional Multi-walled Carbon Nanotubes for Using in Electrochemical Capacitor Materials and Its Electrochemical Performance,TB383.1
  20. Study on the Preparation and Photocatalytic Activity of Titanium Dioxide Nanoparticles,O643.36
  21. Preparation and Properties of EVOH/Carbon Nanotubes Composite Micro/Nanofibers,TB383.1

CLC: > Mathematical sciences and chemical > Chemistry > Analytical Chemistry > Instrument analysis ( physics and physical chemistry ) > Electrochemical analysis
© 2012 www.DissertationTopic.Net  Mobile