Here is reported about the development of a sensing apparatus for dissolved oxygen (DO) in water. The purpose is achieved by means of a home-made electrochemical sensor, with working probe functionalized with Ag-iron oxide nanoparticles, and a readout system based on custom electronics for sensor interfacing and ATMEL microcontroller. Oxygen concentration was varied by bubbling an argon and oxygen mixture at different partial pressure (PO2/P0) into a 1 M phosphate buffer solution (pH = 7.4). A graphical user interface (GUI), developed in Python environment, allows the real-time visualization and recording of data coming from the sensor. The system is biased by USB connection and, employed with a notebook, it can be considered as a portable stand-alone one for outdoor applications.

A portable system for the monitoring of dissolved oxygen in aquatic environment / Lombardo, Luca; Zhang, Jiaran; Leonardi, Salvatore Gianluca; Aloisio, Davide; Neri, Giovanni; Li, Daoliang; Donato, Nicola. - STAMPA. - 409:(2017), pp. 67-73. [10.1007/978-3-319-47913-2_9]

A portable system for the monitoring of dissolved oxygen in aquatic environment

LOMBARDO, LUCA;
2017

Abstract

Here is reported about the development of a sensing apparatus for dissolved oxygen (DO) in water. The purpose is achieved by means of a home-made electrochemical sensor, with working probe functionalized with Ag-iron oxide nanoparticles, and a readout system based on custom electronics for sensor interfacing and ATMEL microcontroller. Oxygen concentration was varied by bubbling an argon and oxygen mixture at different partial pressure (PO2/P0) into a 1 M phosphate buffer solution (pH = 7.4). A graphical user interface (GUI), developed in Python environment, allows the real-time visualization and recording of data coming from the sensor. The system is biased by USB connection and, employed with a notebook, it can be considered as a portable stand-alone one for outdoor applications.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2683404
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