Abstract

Gas-diffusion electrodes of the hydrophobic type were employed as thin-layer gas electrode (TLGE) sensors for monitoring the concentrations of gas components either in the gas phase or dissolved in solution. The sampling and flushing manipulations of such thin-layer devices were designed to be exceedingly simple, and the temperature coefficient of the calibration curves is significantly lower than that of gas sensors based on the limiting current concept. Multi-component determination could also be achieved comparatively easily with the TLGE sensor, as illustrated by the case of analysis of O 2+N 2O mixtures.

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