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標題Title: Statistical Analysis of the Main Effects and Interaction Effects of Detection of Hydrogen Peroxide for the Carbon Paste Electrode Modified with Copper Hexacyanoferrate
作者Authors: 連崇閔,蕭佳政 ..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: 連崇閔
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: 專題報告Project Report
關鍵詞Keyword: Statistical Analysis, Copper Hexacyanoferrate, Carbon Paste Electrode, Average Responding Current, Hydrogen Peroxide
摘要Abstract: Nowadays because hydrogen peroxide is widely used in the food industry for the purpose of preservation, the detecting technique of hydrogen peroxide has become an important research subject. The responding current of hydrogen peroxide is detected in the phosphate buffer solution(PBS) and then the concentration of the hydrogen peroxide can be obtained. The Copper(Ⅱ)Hexacyanoferrate( Cu(Ⅱ)HCF) can be used to modify the carbon paste electrode because the Cu(Ⅱ)HCF possesses the excellent catalytic characteristic and it can be used with the graphite carbon powders and carbon paste to make the carbon paste electrode [Cu(Ⅱ)HCF : graphite carbon powders = 3 : 7(weight ratio)]and to elevate the responding current of the hydrogen peroxide. The results showed that the responding current for the carbon paste electrode modified with Cu(Ⅱ)HCF was elevated significantly. 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 main effects and interaction effects of reaction parameters on the average responding current of detection of hydrogen peroxide for the carbon paste electrode modified with (Cu(Ⅱ)HCF). The results showed that the main effects of operating potential, stirring rate, and pH value of PBS were 0.498 µA , 0.040 µA , and -0.461 µA respectively. The results showed that the main effect of pH value of PBS was negative and the order of the significant level for main effects was operating potential > pH value of PBS > stirring rate.




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