Flow-through tubular PVC matrix membrane electrode without inner reference solution for flow injection analysis

S. Alegret, J. Alonso, J. Bartrolí, J. M. Paulís, J. L.F.C. Lima, A. A.S.C. Machado

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124 Citations (Scopus)

Abstract

A simply constructed tubular PVC matrix membrane electrode without inner reference solution suitable for flow injection analysis is described. The nitrate-selective electrode developed allows simple replacement of an exhausted membrane, or change of function with a new sensor membrane. The compact design ensures mechanical stability and the tubular configuration minimizes distortion of the hydrodynamic flow in the detector. Nitrate can be determined in the range 10-1-10-5 M, under different flow conditions, with a sampling frequency of about 120 h-1. © 1984.
Original languageEnglish
Pages (from-to)147-152
JournalAnalytica Chimica Acta
Volume164
Issue numberC
DOIs
Publication statusPublished - 1 Jan 1984

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