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標題Title: An Experimental Design for Detection of Hydrogen Peroxide for Electrode Modified with Ferrocene
作者Authors: 林庭立,郭寶財 ..等
上傳單位Department: 化學工程與材料工程系
上傳時間Date: 2011-5-29
上傳者Author: 林庭立
審核單位Department: 化學工程與材料工程系
審核老師Teacher: 林浩
檔案類型Categories: 論文Thesis
關鍵詞Keyword: Experimental Design, Ferrocene, Carbon Paste Electrode, Reaction Parameters, Hydrogen Peroxide
摘要Abstract: Nowadays, sometimes the hydrogen peroxide is used in the industry and food preservation, and therefore developing a hydrogen peroxide sensor which can detect the hydrogen peroxide rapidly and conveniently is an important research subject and developing a glucose biosensor which can detect the glucose rapidly and conveniently is also an important research subject. The glucose and oxygen can be catalyzed by the glucose oxidase to produce the gluconic acid and hydrogen peroxide. A study of experimental design involving three factors (operating potential, stirring rate, and pH value of PBS) and two levels was performed to analyze the effect of reaction parameters on the sensitivity of detection of hydrogen peroxide for the carbon paste electrode modified with ferrocene. The results showed that the main effect of operating potential ( F = 151.494, p value < 0.05 ), the main effect of stirring rate ( F = 7.288, p value < 0.05 ), and the main effect of pH value ( F = 94.461, p value < 0.05 ) were significant on the sensitivity. At 30℃, -200 mV operating potential, 500 rpm stirring rate and in 0.05 M PBS buffer solution ( pH = 7.4 ) , when the carbon paste electrode was modified with ferrocene [ferrocene : carbon powders : carbon paste = 0.3:0.7:1 ] , the detection limit was 0.02 mM H2O2 , the linear range was 0.02~1.2 mM H2O2 , R2 = 0.9998 , and the sensitivity was 161.43 µA/cm2.mM H2O2.


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