14 - A comparison of spectrometric methods and methods based on electrochemical principles

Event
Sixth Scientific Meeting EuNetAir
2016-10-05 - 2016-10-07
Academy of Sciences, Prague, Czech Republic
Band
Sixth Scientific Meeting EuNetAir
Chapter
Proceedings
Author(s)
B. Hric, J. Suchánek, I. Bartlová, M. Dostal, V. Nevrlý, P. Bitala, V. Valek - VŠB-Technical University of Ostrava, Faculty of Safety Engineering, Ostrava, Czech Republic, P. Kubát, S. Civiš, Z. Zelinger - J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic
Pages
54 - 57
DOI
10.5162/6EuNetAir2016/14
Price
free

Abstract

Gas detection systems are an important tool for the prevention of accidents, and mitigation of their impact on human life and health. The ideal sensor is selective and has fast, stable and repeatable response to a particular analyte. Over the time it has been shown that various detection principles have led only to partial fulfilment of this ideal. Compromises have to be made according to desired application of the sensor and resulting demands on the sensor parameters, including its price. In this study, the properties of semiconductor, electrochemical and tunable diode laser based sensors are evaluated and compared. The sensors are tested with selected chemicals such as VOCs (Volatile Organic Compounds - methanol) and methane. The advantages and disadvantages are summarized and the possibilities of their use are discussed.

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