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author:

Chen, Qi-Zhen (Chen, Qi-Zhen.) [1] | Fang, Yi-Min (Fang, Yi-Min.) [2] | Wei, Hang (Wei, Hang.) [3] | Huang, Zong-Xiong (Huang, Zong-Xiong.) [4] | Chen, Guo-Nan (Chen, Guo-Nan.) [5] (Scholars:陈国南) | Sun, Jian-Jun (Sun, Jian-Jun.) [6] (Scholars:孙建军)

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Abstract:

A heated copper microdisk electrode (HCME) was fabricated and successfully applied to capillary electrophoresis (CE) and CE-Chip as an electrochemical detector (ECD) for the detection of three carbohydrates and shikimic acid (SA) in Illicium verum Hook F., respectively. The temperature of HCME was heated by twin-wire-wound coil with direct current to reduce the magnetic interference. Coupled with CE and CE-chip, this detector exhibits both extremely stable and sensitive performance at elevated temperature compared with that at room temperature. In successive detection of three carbohydrates and shikimic acid (SA), the HCME exhibits very stable response with RSD of ca. 2% with elevated temperature without renewing the electrode, while at room temperature, RSD of ca. 20% is obtained. This is very important in practical applications that tedious works, such as polishing and re-fixing the electrode at each detection, can be therefore avoided. In addition, the sensitivity is about 2 similar to 6 time increased, and the linear range is about an order wider at elevated temperature (ca. 60 degrees C) than that at room temperature (ca. 25 degrees C).

Keyword:

Community:

  • [ 1 ] [Chen, Qi-Zhen]Fuzhou Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Anal & Detect Food Safety, Fuzhou 350108, Peoples R China
  • [ 2 ] [Fang, Yi-Min]Fuzhou Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Anal & Detect Food Safety, Fuzhou 350108, Peoples R China
  • [ 3 ] [Wei, Hang]Fuzhou Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Anal & Detect Food Safety, Fuzhou 350108, Peoples R China
  • [ 4 ] [Huang, Zong-Xiong]Fuzhou Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Anal & Detect Food Safety, Fuzhou 350108, Peoples R China
  • [ 5 ] [Chen, Guo-Nan]Fuzhou Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Anal & Detect Food Safety, Fuzhou 350108, Peoples R China
  • [ 6 ] [Sun, Jian-Jun]Fuzhou Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Anal & Detect Food Safety, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • 孙建军

    [Sun, Jian-Jun]Fuzhou Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Anal & Detect Food Safety, Fuzhou 350108, Peoples R China

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ANALYST

ISSN: 0003-2654

Year: 2010

Issue: 5

Volume: 135

Page: 1124-1130

3 . 9 1 3

JCR@2010

3 . 6 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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