Development of a new method for analysis of Sudan dyes by pressurized CEC with amperometric detection - Details

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Abstract：

A　new　analytical　method,　pressurized　CEC　(pCEC)　with　amperometric　detection　(AD)　using　1.5　μm　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　kV.　The　detection　limits　for　four　Sudan　dyes　ranged　from　8.0　×　10-7　to　1.2　×　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.　©　2007　Wiley-VCH　Verlag　GmbH　&　Co.　KGaA,　Weinheim.

Keyword：

Amperometric detection; Pressurized CEC; Sudan dyes

Community：

[ 1 ] [Liu, S.]The Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 2 ] [Zhang, X.]The Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 3 ] [Lin, X.]The Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 4 ] [Wu, X.]The Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 5 ] [Fu, F.]The Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 6 ] [Xie, Z.]The Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China

Reprint 's Address：

[Xie, Z.]The Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China

Email：

zhxie@fzu.edu.cn

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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

JCR Journal Grade：1

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 30

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 9

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