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author:

Liu, Shaofeng (Liu, Shaofeng.) [1] | Zhang, Xue (Zhang, Xue.) [2] | Lin, Xucong (Lin, Xucong.) [3] (Scholars:林旭聪) | Wu, Xiaoping (Wu, Xiaoping.) [4] | Fu, Fengfu (Fu, Fengfu.) [5] (Scholars:付凤富) | Xie, Zenghong (Xie, Zenghong.) [6] (Scholars:谢增鸿)

Indexed by:

Scopus SCIE

Abstract:

A new analytical method, pressurized CEC (pCEC) with amperometric detection (AD) using 1.5 mu m RP nonporous silica packed columns has been developed for the rapid separation and determination of four Sudan dyes in hot chilli. The influence of several experimental parameters on the retention behavior has been investigated. The electrochemical oxidation of Sudans I-IV separated by pCEC can be reliably monitored with a carbon electrode at +0.95 V (vs. Ag/AgCl). Fast and efficient separation of the analytes was achieved within 7 min by pCEC under the optimum conditions with an ACN/water (95:5%) mobile phase containing formic acid (pH 4.3), 5% acetone and 0.002% triethylamine using a separation voltage of 12 W The detection limits for four Sudan dyes ranged from 8.0 x 10(-7) to 1.2 x 10(-6) mol/L. To evaluate the feasibility and reliability of this method, the proposed pCEC-AD method was further demonstrated with hot chilli samples spiked with Sudan dyes.

Keyword:

amperometric detection pressurized CEC Sudan dyes

Community:

  • [ 1 ] Fuzhou Univ, Dept Chem, Key Lab Anal & Detect Technol Food Safety, Minist Educ, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • 谢增鸿

    [Xie, Zenghong]Fuzhou Univ, Dept Chem, Key Lab Anal & Detect Technol Food Safety, Minist Educ, Fuzhou 350002, Peoples R China

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Source :

ELECTROPHORESIS

ISSN: 0173-0835

Year: 2007

Issue: 11

Volume: 28

Page: 1696-1703

3 . 6 0 9

JCR@2007

3 . 0 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 34

SCOPUS Cited Count: 30

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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