Mathematical modelling of NIR spectral data and wavelength selection for determination of olive oil mixtures

The spectrophotometric analysis of oil mixtures, containing olive oil, is the subject of this paper. Its objective is to propose and evaluate a new method for wavelength selection aimed at optimisation of the numerical conditioning of the problem of determination of a selected component of such a mixture. The performance of the proposed methodology is assessed using semi-synthetic data and a criterion related to measurement uncertainty.