Comparative study on fast classification of brick samples by combination of principal component analysis and linear discriminant analysis using stand-off and table-top laser-induced breakdown spectroscopy

A critical review of recent progress in analytical laser-induced breakdown spectroscopy

“…Another topic recently becoming popular is the provenance or chronological study of archeological construction materials [194,195]; such studies increasingly use multivariate statistical methods, mainly PCA, DA, or SIMCA, to improve their accuracy. Archeological bone and teeth analysis by LIBS is also frequent in the literature; in recent years these studies have tended to investigate the degradation and/or diagenesis processes of such artefacts [196,197].…”

Correlation between aging grade of T91 steel and spectral characteristics of the laser-induced plasma

“…In other words, the sample characteristics can also be reflected by the matrix effect to a certain extent. There are some reports that using the matrix effect can reflect the characteristics of the sample [21][22][23][24][25][26][27][28][29][30]. Cerrai et al [21] reported that it is possible to establish a relationship between the spectral line intensity of the component and the work-hardening or recrystallization conditions, grain size and the mechanical strain present in the same sample.…”

“…Abdel-Salamet et al [24] showed that the values of CaII/CaI, MgII/MgI have certain correlations with the hardness for different calcified tissue materials, and ZrII/ZrI shows correlations with the hardness of metallic samples [25]. The atomic to ionic ratios are also correlated with the firing temperature of bricks, which has a certain relationship with the hardness [26]. Labutin et al [27,28] analyzed the correlation between the laser-induced plasma parameters and specimen properties; they found that there was a negative correlation between the opto-acoustic signal or crater volume and the hardness of the specimen.…”

Application of Stand-off Double-Pulse Laser-Induced Breakdown Spectroscopy in Elemental Analysis of Magnesium Alloy

“…In addition, the stand-off LIBS technology which can analyze the sample from a certain distance is another research focus [26−28] . Stand-off LIBS is suitable for some uncontacting sample detection or some special environmental requirements, like archaeology research [29,30] and planetary exploration [31] . In this paper, we combined the double pulse and stand-off technologies and designed a stand-off collinear DP LIBS analysis system.…”