Resumo

SOUZA, André Marcelo de  e  POPPI, Ronei Jesus. Teaching experiment of chemometrics for exploratory analysis of edible vegetable oils by mid infrared spectroscopy and principal component analysis: a tutorial, part I. Quím. Nova [online]. 2012, vol.35, n.1, pp. 223-229. ISSN 0100-4042.  http://dx.doi.org/10.1590/S0100-40422012000100039.

This manuscript aims to show the basic concepts and practical application of Principal Component Analysis (PCA) as a tutorial, using Matlab or Octave computing environment for beginners, undergraduate and graduate students. As a practical example it is shown the exploratory analysis of edible vegetable oils by mid infrared spectroscopy.

Palavras-chave : principal component analysis; infrared spectroscopy; edible oils.