AGE-DETERMINATION OF CHINESE PORCELAIN BY X-RAY-FLUORESCENCE AND MULTIVARIATE-ANALYSIS

In this paper, we report on the use of principal component analysis an d partial least-squares regression (PLSR) for the age determination of Chinese porcelain of the period 1700-1990. Energy-dispersive X-ray fl uorescence (EDXRF), a non-destructive technique, was used to retrieve elemental information of the objects. Fifteen elements were measured o n 17 pieces of Chinese porcelain. The regression coefficients of the f inal PLS model are related to elemental concentrations and their magni tudes are consistent with observations reported in the literature base d on univariate analysis.