Increasing electronic nose recognition ability by sample laser irradiation

MASSACANE ALEJANDRA; VOROBIOFF JUAN; PIERPAULI KARINA; BOGGIO, NORBERTO; REICH SILVIA; RINALDI, CARLOS A.; BOSELLI ALFREDO; LAMAGNA ALBERTO; AZCÁRATE M. LAURA; CODNIA JORGE; MANZANO FRANCISCO

SENSORS AND ACTUATORS B-CHEMICAL

ELSEVIER SCIENCE SA

Año: 2010 vol. 146 p. 534 - 538

0925-4005

                 In this article a method to increase the capability of an electronicnose to discriminate between a priori similar odours is presented. Olive oil is analyzed because it is well known that the characteristics of its aroma impair in many cases the discrimination between different kinds of olive oils especially when they are from similar geographic regions. In the present work the improvement of the electronicnose performance for the above-mentioned discrimination by a non-destructive method of IR laser vaporization of the sample is studied. Laser vaporization has also been performed at two different IR wavelengths to analyze the effect of laser radiation absorption of the sample on the electronicnose selectivity.