| Content | 第1-5页 |
| 摘要 | 第5-7页 |
| Abstract | 第7-10页 |
| Chapter 1 Introduction | 第10-22页 |
| 1.Introduction of electroanalytical chemistry | 第10页 |
| 2.ntroduction of chemically modified electrodes | 第10-15页 |
| ·Introduction of bismuth film electrode | 第11-12页 |
| ·Introduction of poly(p-aminobenzene sulfonic acid) modified electrode | 第12-13页 |
| ·Introduction of functionalized graphene modified electrode | 第13-15页 |
| 3.References | 第15-22页 |
| Chapter 2 Sensitive determination of Cd(Ⅱ) by square wave anodic strippingvoltammetry with in situ bismuth-modified multiwalled carbon nanotubes doped carbonpaste electrodes | 第22-37页 |
| 1.Introduction | 第22-23页 |
| 2.Experimental | 第23-24页 |
| ·Materials | 第23页 |
| ·Apparatus | 第23页 |
| ·Measurement procedure | 第23-24页 |
| 3.Results and discussion | 第24-32页 |
| ·Square-wave anodic stripping voltammetric response of Cd(Ⅱ) at the Bi/MCNTs-CPE | 第24-25页 |
| ·Optimization of experimental conditions for determination of Cd(Ⅱ) at the Bi/MCNTs-CPE | 第25-29页 |
| ·Calibration data | 第29-30页 |
| ·Interference studies | 第30-31页 |
| ·Analytical application to tap water sample | 第31-32页 |
| 4.Conclusions | 第32-33页 |
| 5.References | 第33-37页 |
| Chapter 3 Electrochemical determination of Sudan Ⅰ using reduced graphene-modifiedglassy carbon electrode | 第37-47页 |
| 1.Introduction | 第37页 |
| 2.xperimental | 第37-38页 |
| ·Chemicals and Reagents | 第37-38页 |
| ·Apparatus | 第38页 |
| ·Experimental procedure | 第38页 |
| 3.Result and discussion | 第38-44页 |
| ·Characteristics of the GCE and r-GO/GCE | 第38-39页 |
| ·Electrochemical behavior of Sudan Ⅰ at the r-GO/GCE and GCE | 第39-40页 |
| ·Optimization of experiment conditions | 第40-42页 |
| ·Analytical properties | 第42-44页 |
| 4.Conclusion | 第44-45页 |
| 5.References | 第45-47页 |
| Chapter 4 A novel conducting poly(p-aminobenzene sulfonic acid)-based electrochemical sensor for sensitive determination of Sudan Ⅰ and application fordetection in food stuffs | 第47-62页 |
| 1.Introduction | 第47页 |
| 2.Experimental | 第47-49页 |
| ·Chemicals and reagents | 第48页 |
| ·Apparatus | 第48页 |
| ·Sample reparation | 第48页 |
| ·Experimental procedure | 第48-49页 |
| 3. Results and discussion | 第49-55页 |
| ·Electropolymerization of p-aminobenzene sulfonic acid at the glassy carbon electrode Surface | 第49页 |
| ·Electrochemical behavior of Sudan Ⅰ at the poly(p-aminobenzene sulfonic acid) modified electrode | 第49-50页 |
| ·Optimization of experimental conditions | 第50-53页 |
| ·Analytical properties | 第53-55页 |
| 4.Conclusions | 第55-57页 |
| 5.References | 第57-62页 |
| Chapter 5 Sensitive detection of gallic acid based on polyethyleneimine- functionalizedgraphene modified glassy carbon electrode | 第62-75页 |
| 1.Introduction | 第62-63页 |
| 2.Experimenta | 第63-64页 |
| ·Reagents and materials | 第63页 |
| ·Apparatus | 第63页 |
| ·Sample preparation | 第63-64页 |
| ·Preparation of polyethyleneimine-functionalized graphene oxide | 第64页 |
| ·Experimental procedure | 第64页 |
| 3.Results and discission | 第64-72页 |
| ·Characteristics of the polyethyleneimine-functionalized graphene oxide modified glassy carbon electrode by SEM and cyclic voltammetry | 第64-65页 |
| ·Determination of effective surface area of the electrode | 第65-66页 |
| ·Electrochemical redox behavior of gallic acid at the polyethyleneimine-functionalized graphene oxe modified glassy carbon electrode | 第66-68页 |
| ·Influence of the pH | 第68-69页 |
| ·Effect of adsorption time | 第69页 |
| ·Effect of the scan rate on the cyclic voltammogram | 第69-70页 |
| ·Calibration curves and detection limit of electrochemical oxidation of gallic acid | 第70-71页 |
| ·Reproducibility and interferences | 第71-72页 |
| ·Analysis of the samples of green tea and black tea | 第72页 |
| 4.Conclusions | 第72-73页 |
| 5.References | 第73-75页 |
| 致谢 | 第75-76页 |
| 附录 | 第76页 |
