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Nitrate ion-selective electrode as reference electrode for flow-injection analysis

✍ Scribed by Julian Alonso-Chamarro; Jordi Bartroli; Cecília Jimenez

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
387 KB
Volume
261
Category
Article
ISSN
0003-2670

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✦ Synopsis

The development of a flow-mJectlon system for pH determmation usmg a pH Ion-sensltwe field-effect transistor m conJunctlon Hnth a tubular flow-through nitrate Ion-selectwe electrode (ISE) as a reference electrode 1s descrtbed With this system, the hnear workmg range extends from pH 1 to 13 wth a sensltltlvlty of 56 mV per pH umt and a relative standard dewatron of 0 4% A stable baseline and good response are obtained by placmg the tubular ISE m a closed branch of the mam channel

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