Premium
Evaluation of a Four Sensor Array Used in a Wall‐Jet Configured Flow Cell for Flow Injection Potentiometry
Author(s) -
Dimitrakopoulos Lucy Tina,
Dimitrakopoulos Telis
Publication year - 2001
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/1521-4109(200102)13:2<161::aid-elan161>3.0.co;2-r
Subject(s) - electrode , potentiometric titration , materials science , analytical chemistry (journal) , jet (fluid) , flow (mathematics) , flow injection analysis , potassium nitrate , potentiometric sensor , linear range , potassium , chemistry , detection limit , chromatography , mechanics , physics , metallurgy
Photo‐cured calcium, potassium, and nitrate ion‐selective electrodes and Ag/AgCl wire as a chloride electrode have been integrated into a sensor array that is suitable for FIP measurements in a wall‐jet flow cell. Each sensor in the electrode‐array exhibited near‐Nernstian response over a log‐linear range between 0.1 mM and 10 mM and detection limits of 0.01 mM in the flow injection potentiometric mode. The four coated wire electrodes were used simultaneously in the flow injection mode to determine their respective determinand in various water samples and the results were in good agreement with standard analytical methods.