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. Author manuscript; available in PMC: 2013 Feb 12.
Published in final edited form as: Anal Chim Acta. 2012 Jun 12;738:69–75. doi: 10.1016/j.aca.2012.06.002

Fig. 5.

Fig. 5

Sensor resistance at 90% RH and upon exposure to ultra low concentrations of acetone (20, 50, 60 and 80 ppb) at 350 °C. The signal noise arises from small temperature fluctuations.