Electrochemical behavior of tryptophan and its derivatives at a glassy carbon electrode modified with hemin - Details

author：

Nan, C.G. (Nan, C.G..) ^[1] | Feng, Z.Z. (Feng, Z.Z..) ^[2] | Li, W.X. (Li, W.X..) ^[3] | Ping, D.J. (Ping, D.J..) ^[4] | Qin, C.H. (Qin, C.H..) ^[5]

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Abstract：

The　electrochemical　behavior　of　tryptophan　(Trp)　and　its　derivatives,　such　as　indole-3-acetic　acid　(IAA),　5-hydroxytryptamine　(5-HT),　5-hydroxy-indole-3-acetic　acid　(5-HIAA)　and　glycyl-tryptophan　(Gly-Trp)　peptide　at　a　glassy　carbon　electrode　modified　with　hemin　(hemin/GC　electrode)　by　electropolymerization　have　been　investigated　in　detail.　The　results　showed　that　the　hemin/GC　electrode　would　catalyze　the　electrochemical　oxidation　of　Trp　and　its　derivatives,　based　on　which　a　differential　pulse　voltammetric　procedure　has　been　proposed　for　determination　of　Trp　and　its　derivatives.　Meanwhile,　the　electrochemical　reaction　mechanism　for　these　compounds　at　hemin/GC　electrode　has　been　also　investigated,　and　the　results　indicated　that　a　two　electron　and　two　proton　transfer　was　involved　in　the　electrode　reaction　process.　©　2002　Elsevier　Science　B.V.　All　rights　reserved.

Keyword：

Electrochemistry; Electropolymerization; Hemin; Modified electrode; Tryptophan and its derivatives

Community：

[ 1 ] [Nan, C.G.]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 2 ] [Feng, Z.Z.]School of Engineering and Science, Monash University Malaysia, Bandar Sunway, 46150 Petaling Jaya, Selangor, Malaysia
[ 3 ] [Li, W.X.]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
[ 4 ] [Ping, D.J.]Analytical and Testing Center, Fuzhou University, Fuzhou, Fujian 350002, China
[ 5 ] [Qin, C.H.]Analytical and Testing Center, Fuzhou University, Fuzhou, Fujian 350002, China

Reprint 's Address：

Email：

gnchen@fzu.edu.cn

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Source ：

Analytica Chimica Acta

ISSN： 0003-2670

Year： 2002

Issue： 2

Volume： 452

Page： 245-254

2 . 1 1 4

JCR@2002

5 . 7 0 0

JCR@2023

JCR Journal Grade：1

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SCOPUS Cited Count： 103

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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