Mechanism for inhibition of Ru(bpy)32 +/DBAE electrochemiluminescence system by dopamine - Details

author：

Xue, Lingling (Xue, Lingling.) ^[1] | Guo, Longhua (Guo, Longhua.) ^[2] | Qiu, Bin (Qiu, Bin.) ^[3] | Lin, Zhenyu (Lin, Zhenyu.) ^[4] | Chen, Guonan (Chen, Guonan.) ^[5]

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Abstract：

Recently,　2-(dibutylamino)ethanol　(DBAE)　was　reported　to　be　a　more　efficient　co-reactant　than　the　widely　used　tripropylamine　(TPrA)　for　electrochemiluminescence　(ECL)　of　Ru(bpy)32　+.　Therefore,　the　new　Ru(bpy)32　+/DBAE　ECL　system　seemed　to　be　great　potential　for　its　application　in　analytical　chemistry.　Dopamine　(DA)　was　found　to　be　able　to　inhibit　the　ECL　of　Ru(bpy)32　+/DBAE　system.　Under　the　optimum　conditions,　the　logarithmic　plot　of　the　inhibited　ECL　versus　the　concentration　of　DA　was　linear　in　the　range　of　5　×　10-10-7　×　10-7　M　with　the　detection　limit　of　4.0　×　10-11　M.　A　mechanism　based　on　the　quenching　of　reductive-form　DBAE　by　DA-oxidation　products　was　proposed,　which　was　quite　different　from　the　mechanism　for　Ru(bpy)32　+/TPrA/DA　system　reported　previously.　©　2009　Elsevier　B.V.　All　rights　reserved.

Keyword：

Amines Chemical analysis Enzyme inhibition Ethanol Neurophysiology

Community：

[ 1 ] [Xue, Lingling]Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, 350002, China
[ 2 ] [Guo, Longhua]Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, 350002, China
[ 3 ] [Qiu, Bin]Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, 350002, China
[ 4 ] [Lin, Zhenyu]Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, 350002, China
[ 5 ] [Chen, Guonan]Ministry of Education Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, 350002, China

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zylin@fzu.edu.cn

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Source ：

Electrochemistry Communications

ISSN： 1388-2481

Year： 2009

Issue： 8

Volume： 11

Page： 1579-1582

4 . 2 4 3

JCR@2009

4 . 7 0 0

JCR@2023

JCR Journal Grade：1

CAS Journal Grade：1

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WoS CC Cited Count：

SCOPUS Cited Count： 65

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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