尚未登入 請由此登入
 
 
 










知識分享平台Eshare檢視資訊View
返回前一頁Back
      [檢舉]

標題Title: he Detection of Hydrogen Peroxide and Glucose for the Electrode Modified with Ruthenium Hexacyanoferrate
作者Authors: 連崇閔,廖國翔 ..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: Electrode , Ruthenium Hexacyanoferrate , Sensitivity , Hydrogen Peroxide, Glucose
摘要Abstract:
A study was conducted to use the ruthenium hexacyanoferrate to modify the carbon paste electrode which was used as the working electrode to detect the responding current of reduction of hydrogen peroxide in the PBS buffer solution( pH = 7.4 )and the sensitivity of detection of hydrogen peroxide was determined from the responding current and consequently, the concentration of the glucose could be determined. The TB (Time Base) graphs for different operating potentials, stirring rates, and pH values were plotted to determine the optimum operating conditions. The results showed that the responding current for the carbon paste electrode modified with the ruthenium hexacyanoferrate was elevated significantly. At 30℃ , -200mV operating potential, 600rpm stirring rate and in 0.05 M PBS buffer solution( pH = 7.4 ), when the carbon paste electrode was modified with the ruthenium hexacyanoferrate [ruthenium hexacyanoferrate : graphite carbon powders = 3 : 7 ( weight ratio )] , the detection limit was 0.02 mM H2O2 , the linear range was 0.02~2.7 mM H2O2, R2=0.9996, and the sensitivity was 661.8 μA/cm2ּmM H2O2 . For the glucose biosensor, the detection limit was 0.02 mM C6H12O6 , the linear range was 0.02~2.56 mM C6H12O6 (R2=0.999), and the sensitivity was 4.11 µA/cm2.mM C6H12O6. The optimum operating conditions are -200mV operating potential, 600rpm stirring rate and in 0.05 M PBS buffer solution( pH = 7.4 ) [ruthenium hexacyanoferrate : graphite carbon powders = 3 : 7 ( weight ratio )] .


檔案名稱
FileName
檔案大小
Size
檔案格式
Format
瀏覽次數
Browses
下載次數
Downloads
2011_5_8e6f8372.ppt 1872Kb ppt 217 21
文件中檔案:
 

開啟檔案Download
 
 
返回前一頁