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Type: Artigo de periódico
Title: Development of a potentiometric flow cell with a stainless steel electrode for pH measurements. Determination of acid mixtures using flow injection analysis
Author: Zampronio, CG
Rohwedder, JJR
Poppi, RJ
Abstract: In this work a stainless steel electrode was prepared, characterised and used as indicator electrode in a potentiometric flow cell. Due to its versatility, it was possible to study different electrode geometries and flow cell arrangements. After optimising the system, mixtures of succinic and oxalic acids were determined by titration. Partial least squares (PLS) regression as multivariate calibration tool was applied for data treatment. The predicted results obtained in a test set showed a relative error of 4.3% for succinic acid and 5.5% for oxalic acid. (C) 2000 Elsevier Science B.V. All rights reserved.
Subject: potentiometric flow cell
pH measurements
flow injection analysis
Country: Holanda
Editor: Elsevier Science Bv
Citation: Talanta. Elsevier Science Bv, v. 51, n. 6, n. 1163, n. 1169, 2000.
Rights: fechado
Identifier DOI: 10.1016/S0039-9140(00)00296-4
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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