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Type: Artigo de periódico
Title: Alternating Layers of Iron(III) Tetra(N-methyl-4-pyridyl)-porphyrin and Copper Tetrasulfonated Phthalocyanine for Amperometric Detection of 4-Nitrophenol in Nanomolar Levels
Author: Lima, PR
Santos, WDR
Goulart, MOF
Tanaka, AA
Tanaka, SMCN
Kubota, LT
Abstract: The present work describes the development of a highly sensitive amperometric sensor for 4-NP in nanomolar levels using a glassy carbon electrode modified with alternating layers of CuTSPc and FeT4MPyP. After optimizing the operational conditions, the sensor provided a linear response range for 4-NP from 5 up to 100 nmol L-1 with sensitivity, detection, and quantification limits of 14 nA L nmol(-1), 1.9 nmol L-1, and 5.4 nmol L-1, respectively. The proposed sensor showed a stable response for at least 200 successive determinations. This modified electrode can be used to the determination of 4-NP in water samples.
Subject: 4-Nitrophenol
Amperometric sensor
Country: Alemanha
Editor: Wiley-v C H Verlag Gmbh
Rights: fechado
Identifier DOI: 10.1002/elan.200804330
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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