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Updated: Apr 1, 2026

Thermal Measurement Techniques in Analytical Microfluidic Devices
Published on: June 3, 2015
New methodology for the thermal characterization of thermoelectric liquids
Karim Touati1, Michael Depriester1, Maju Kuriakose1
1Univ Lille Nord de France, 59044 Lille, France.
Abstract:
A new and accurate method for the thermal characterization of thermoelectric liquids is proposed. The experiment is based on a self-generated voltage due to the Seebeck effect. This voltage is provided by the sample when one of its two faces is thermally excited using a modulated laser. The sample used is tetradodecylammonium nitrate salt/1-octanol mixture, with high Seebeck coefficient. The thermal properties of the used sample (thermal diffusivity, effusivity, and conductivity) are found and compared to those obtained by other photothermal techniques. In addition to this, a study of the electrolyte thermal parameters with the variation of tetradodecylammonium nitrate concentration was also carried out. This new method is promising due to its accuracy and its simplicity.
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