title: Laser-induced breakdown spectrometry in jewellery industry. Part II: quantitative characterisation of goldfilled interface.
abstract: A new application of laser-induced breakdown spectrometry (LIBS) and multivariate data analysis, namely partial least-squares regression (PLS) in the jewellery industry is reported. The method was designed for the quantitative characterisation of the interface of goldfilled, a material widely used in costume jewellery fabrication, by monitoring the emission lines of the elements present in the sample, while subjecting the piece to a number of laser pulses. The method also provides quantitative information about the composition of a given layer of the material of a special interest at the interface in order to know the existence of diffusion phenomena.
authors.affiliation: Analytical Chemistry Division, Annex C-3, Campus of Rabanales, University of Córdoba, E-14071, Córdoba, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Jurado-López
authors.forename: M D
authors.initials: MD
authors.lastname: Luque de Castro