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Sensors 2001, 1(1), 29-37; doi:10.3390/s10100029

Article

Errors in Chemical Sensor Measurements

Artur Dybko

Department of Analytical Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland

Received: 14 May 2001 / Accepted: 8 June 2001 / Published: 20 June 2001

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Abstract: Various types of errors during the measurements of ion-selective electrodes, ionsensitive field effect transistors, and fibre optic chemical sensors are described. The errors were divided according to their nature and place of origin into chemical, instrumental and non-chemical. The influence of interfering ions, leakage of the membrane components, liquid junction potential as well as sensor wiring, ambient light and temperature is presented.

Keywords: errors; chemical sensors; metrology

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