A novel approach to elemental analysis by Laser Induced Breakdown Spectroscopy based on direct correlation between the electron impact excitation cross section and the optical emission intensity

2011 ◽  
Vol 66 (9-10) ◽  
pp. 661-670 ◽  
Author(s):  
Alessandro De Giacomo
Keyword(s):  
Cross Section ◽  
Elemental Analysis ◽  
Excitation Cross Section ◽  
Optical Emission ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Novel Approach ◽  
Laser Induced Breakdown

Rapid elemental analysis of human teeth using laser induced breakdown spectroscopy

2021 ◽  
Vol 602 ◽  
pp. 412495
Author(s):  
Javeria Batool ◽  
Nasir Amin ◽  
Yasir Jamil ◽  
NekM. Shaikh ◽  
Shamoon Al Islam
Keyword(s):  
Elemental Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Human Teeth ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

scholarly journals Analysis of Garnet by Laser-Induced Breakdown Spectroscopy—Two Practical Applications

Minerals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 705
Author(s):  
Peter A. Defnet ◽  
Michael A. Wise ◽  
Russell S. Harmon ◽  
Richard R. Hark ◽  
Keith Hilferding
Keyword(s):  
Optical Emission ◽  
Atomic Emission ◽  
Laser Induced Breakdown Spectroscopy ◽  
Support Vector ◽  
Success Rates ◽  
Practical Applications ◽  
Chemical Complexity ◽  
Geochemical Fingerprinting ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a simple and straightforward technique of atomic emission spectroscopy that can provide multi-element detection and quantification in any material, in-situ and in real time because all elements emit in the 200–900 nm spectral range of the LIBS optical emission. This study evaluated two practical applications of LIBS—validation of labels assigned to garnets in museum collections and discrimination of LCT (lithium-cesium-tantalum) and NYF (niobium, yttrium and fluorine) pegmatites based on garnet geochemical fingerprinting, both of which could be implemented on site in a museum or field setting with a handheld LIBS analyzer. Major element compositions were determined using electron microprobe analysis for a suite of 208 garnets from 24 countries to determine garnet type. Both commercial laboratory and handheld analyzers were then used to acquire LIBS broadband spectra that were chemometrically processed by partial least squares discriminant analysis (PLSDA) and linear support vector machine classification (SVM). High attribution success rates (>98%) were obtained using PLSDA and SVM for the handheld data suggesting that LIBS could be used in a museum setting to assign garnet type quickly and accurately. LIBS also identifies changes in garnet composition associated with increasing mineral and chemical complexity of LCT and NYF pegmatites.

Forensic analysis of hand-written documents using laser-induced breakdown spectroscopy (LIBS) and chemometrics

2021 ◽  
Author(s):  
Felipe Ferri Hilario ◽  
Matheus Lima de Mello ◽  
Edenir Rodrigues Pereira-Filho
Keyword(s):  
Elemental Analysis ◽  
Forensic Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Minimum Number ◽  
Non Destructive ◽  
Ball Point ◽  
Maximum Differentiation

With the use of Laser Induced Breakdown Spectroscopy (LIBS), fast and semi non-destructive elemental analysis of ball-point pen writings has been performed directly from paper surfaces, aiming to obtain maximum differentiation between pens with a minimum number of pulses.

Elemental analysis of laser induced breakdown spectroscopy aided by an empirical spectral database

2008 ◽  
Vol 47 (31) ◽  
pp. G99 ◽  
Author(s):  
Steven Rock ◽  
Aristides Marcano ◽  
Yuri Markushin ◽  
Chandran Sabanayagam ◽  
Noureddine Melikechi
Keyword(s):  
Elemental Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Spectral Database
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