Espectru00e2metro of emissu00e7o in regiu00e7o infrared pru00e0ximo and method for determinau00c7u00e7o of oxidative stability of fats and biodiesel u00e0leos,

摘要

Espectru00e2metro of emissu00e7o in regiu00e7o infrared pru00e0ximo and method for determinau00c7u00e7o of oxidative stability of u00e0leos, fats and biodiesel.The invention in question refers to an emission spectrometer for the near infrared region comprising: an electric heater (1), a cell for introduction of samples (2), a chamber (3), a plane convex lenses (4),An optical filter having a tunable acoustic to the infrared region (5) and a detector (6) the invention in question also refers to a method for the determination of oxidative stability of oils.Fats and biodiesel using an emission spectrometer in the region of the near infra-red and comprising the following steps: maintenance of a sample in an inert environment; heating the sample to a minimum temperature of 140u00b0c and maintenance of the sample in this temperatu RA; substitution of an inert environment by environment including oxygen; - acquisition of emission spectraFrom the emission spectrometer; - Determination of the oxidation state of the sample; obtaining a stability curve; and determination of oxidative stability by obtaining the induction time (TI) of the sample.