Sensors Based on Tin and Indium Oxides for the Determination of Acetone in Human Breath
Tatiana Kimakova,
Daria Kondrakhova,
Evgeni Ovodok
et al.
Abstract:The properties of
planar sensors based on tin dioxide and indium
oxide used for the determination of acetone vapors have been studied.
Sensors based on synthesized SnO2 and In2O3 nanopowders showed high sensitivity to low concentrations
of acetone in a humid environment which simulates human exhalation.
The addition of a small amount of AuIII ions to hydroxide
sols significantly increases the threshold sensitivity and the sensor
response in a wide range of acetone concentrations. In2O3–Au sensors have the maxi… Show more
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