A Strip Sensor Based on PbO2/Carbon Paste Electrode to Determine Sweetener Contents in Fruits

被引：1

作者：

Lee, Jae Seon ^{[1
]}

Cho, Joo Young ^{[1
]}

Heo, Min ^{[1
]}

Lim, Woo-Jin ^{[2
]}

Lee, Sang Eun ^{[2
]}

Nam, Hakhyun ^{[1
]}

Cha, Geun Sig ^{[1
]}

Shin, Jae Ho ^{[1
]}

机构：

[1] Kwangwoon Univ, Dept Chem, Seoul 139701, South Korea

[2] Hankyong Natl Univ, Dept Plant & Environm Sci, Anseong 456749, South Korea

来源：

JOURNAL OF THE KOREAN ELECTROCHEMICAL SOCIETY | 2014年 / 17卷 / 02期

关键词：

Sweetness sensor; Non-enzymatic; Lead dioxide(PbO2); Strip-type sensor; Nafion;

D O I：

10.5229/JKES.2014.17.2.130

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A strip sensor based on PbO2/carbon paste electrode was prepared by a screen-printing method, and employed to electrochemically determine the concentration of fruit sweeteners(i.e. glucose, sucrose, and fructose). The PbO2/carbon paste electrode could monitor electrocatalytic oxidation of organic compounds such as carbohydrates, and measure the levels of natural sweeteners without enzyme. Severe interference from ascorbic acid was effectively reduced by modifying the electrode surface with a Nafion membrane. The response level of the Nafion/PbO2/carbon paste electrode increased in the order of fructose, sucrose, and glucose, which corresponds to the order of sweetness perceived by humans.

引用

页码：130 / 137

页数：8

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