Influencia de la granulometria de la muestra en la discriminación de especies de Salix por infrarrojo cercano

Abstract

In Brazil, the cultivated species of genus Salix have great importance in crafts, with different properties in relation to malleability and resistance. This paper aimed to apply near infrared spectroscopy (FT-NIR) for discrimination of four Salix species, comparing solid sample and particulate material. Samples from Salix viminalis, Salix x rubens, Salix purpurea and Salix sp. were collected in seven sites in the region of Rio Canoas Valley, Santa Catarina State, Brazil. It was obtained absorbance spectra in FT-NIR (Bruker Tensor 37). The shape and particle size of Salix spp. influenced the discrimination of species by near infrared. The technique had a more efficient distinction for smaller particle size samples.