Chemical Oxidation of p-Hydroxyphenylpyruvic Acid in Aqueous Solution by Capillary Electrophoresis with an Electrochemiluminescence Detection System - Details

author：

Chen, Guonan (Chen, Guonan.) ^[1] | Chi, Yuwu (Chi, Yuwu.) ^[2] | Wu, Xiaoping (Wu, Xiaoping.) ^[3] | Duan, Jianping (Duan, Jianping.) ^[4] | Li, Nianbin (Li, Nianbin.) ^[5]

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Abstract：

A　system　of　capillary　electrophoresis　with　electrochemiluminescence　detection　(CE-ECL)　together　with　UV　spectroscopic　and　electrochemical　methods　were　used　to　study　the　chemical　oxidation　of　p-hydroxyphenylpyruvic　acid　(pHPP)　by　dissolved　oxygen　in　aqueous　solution.　The　pHPP　was　observed　to　be　readily　oxidized　by　dissolved　oxygen　in　alkaline　solution　and　yielded　a　compound　that　strongly　enhanced　the　electrochemiluminescence　of　Ru(bpy)2　3+.　This　compound　was　separated　and　detected　by　a　new　CE-ECL　system　and　revealed　to　be　oxalate　by　being　compared　with　an　authentic　sample　of　oxalate.　The　chemical　oxidation　mechanism　of　pHPP　by　dissolved　oxygen　was　discussed　in　this　paper.

Keyword：

Capillarity Chemiluminescence Electrophoresis Organic acids Oxidation Solutions Ultraviolet spectroscopy

Community：

[ 1 ] [Chen, Guonan]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 2 ] [Chi, Yuwu]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 3 ] [Wu, Xiaoping]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 4 ] [Duan, Jianping]Analytical and Testing Center, Fuzhou University, Fuzhou, Fujian 350002, China
[ 5 ] [Li, Nianbin]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China

Reprint 's Address：

Email：

gnchen@fzu.edu.cn

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Source ：

Analytical Chemistry

ISSN： 0003-2700

Year： 2003

Issue： 23

Volume： 75

Page： 6602-6607

5 . 2 5

JCR@2003

6 . 8 0 0

JCR@2023

JCR Journal Grade：1

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 42

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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