- 作者: 唐自強 ; 黃宣容
- 作者服務機構: 中山大學化學系
- 中文摘要: Performance of glassy carbon electrode on the determination of purines and DNA was found to be improved dramatically by activating the GCE with a simple but effective electrochemical pretreatment. Characteristics such as lowering of oxidation potential, enhancement of peak current and elimination of fouling effect were found for the activated GCE. By flow injection analysis, good reproducibility with relative standard deviations of 0.59 and 2.01% (n = 11) and rather low detection limits of 0.6.plmin.0.1 and 3.0.plmin.0.4 nM can be obtained for the analysis of guanine and adenine. Solutions of denatured calf thymus DNA were analyzed by differential pulse voltammetry with the activated GCE. Good agreement between the obtained results and the known values confirms the feasibility of the activated GCE for DNA analysis.
- 英文摘要: --
- 中文關鍵字: Activation; Dna; Differential Pulse Voltammetry; Flow Injection Analysis
- 英文關鍵字: 活化;去氧核糖核酸;差示脈衝伏安法;流動注入分析