Flow-through pH-ISFET + reference-ISE as integrated detector in automated FIA determinations

S. Alegret, J. Bartrolí, C. Jimenez-Jorquera, M. del Valle, C. Dominguez, J. Esteve, J. Bausells

Research output: Contribution to journalArticleResearchpeer-review

15 Citations (Scopus)

Abstract

The implementation of a pH-ISFET and a flow-through sandwich nitrate selective electrode (ISE) as a reference electrode in a flow-injection system for pH determination, is described. With this system, the linear working range extends from pH 1 to 13 with a sensitivity of 59 mV per pH unit and a relative standard deviation of 0.5%. To implement the sensor in the flow system, a special flow assembly which integrates the ISFET and the ISE has been designed. © 1992.
Original languageEnglish
Pages (from-to)555-560
JournalSensors and Actuators: B. Chemical
Volume7
Issue number1-3
DOIs
Publication statusPublished - 1 Jan 1992

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