Quantitative analyses of glass via laser-induced breakdown spectroscopy in argon

Characteristics of the ablation plume induced on glasses for analysis purposes with laser-induced breakdown spectroscopy

“…The obtained information provides arguments for the choice of the experimental parameters in a given application. It confirms also the plasma model used for the implementation of the calibration-free LIBS procedure for elemental determination in glasses [27]. The analytical performance is then studied in terms of signal-to-noise ratio, and self-absorption behavior of the plasmas induced in the different conditions.…”

Multianalytical characterization of Late Roman glasses including nanosecond and femtosecond laser induced breakdown spectroscopy

“…The second technique is based on a calibration-free procedure, where the laser-induced plasma and the optical plasma emission are modeled and directly yield the composition of the sample material from the LIBS spectra. 32,34 In the present work we present a comparative quantitative analysis by LIBS of an outstanding set of Late Roman glasses using both ns and fs laser pulses. Calibration curves were obtained based on LIBS measurements on standard and certified glasses.…”

Quantitative analysis by laser-induced breakdown spectroscopy based on generalized curves of growth

“…A procedure, described in Section 4, is used to eliminate from the Cσ graph the data for which (τ l Δλ L ) z exceeds the model limit previously established. The use of a quantitative model limit that allows discarding data in the analytical procedure is also a distinctive feature of our method from previous approaches [3,4,[6][7][8][9]. Following the idea expressed previously, it should be stressed again that, for elements with strongly different ionization energies, a different value of the model limit or an additional criterion might be required.…”

“…The estimated mass fractions for the detected elements were in good agreement with published data obtained using standard techniques for analysis of aliments. In a recent work [8], the same group has performed elemental analysis of glass, including oxygen, and determined all the main constituents of the samples, achieving a measurement precision of about 10%. Also, in [9], they have demonstrated the method on carbon-based materials from the inner wall of a fusion reactor.…”

“…Also, in [9], they have demonstrated the method on carbon-based materials from the inner wall of a fusion reactor. In [6][7][8], a model of uniform plasma is considered, whereas a plasma composed of two different uniform zones is used in [9] to account for the observed temperature gradient. Thus, setting a suitable plasma model is probably the most relevant and difficult issue in standardless methods.…”