UV laser ablation optical emission spectrometry on aluminum alloys in air at atmospheric pressure

André, Nicolás; Geertsen, C.; Lacour, Jean-Luc; Mauchien, P.; Sjöström, Sten

doi:10.1016/0584-8547(94)80115-0

Cited by 22 publications

(11 citation statements)

References 9 publications

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“…Previous work suggests that these matrix effects are reduced, but not eliminated. 1 Many papers have been published on the quantitative analysis of aluminum alloys [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] using univariate prediction models constructed with classical least-squares regression between a dependent variable (signal for an element) and an independent variable (concentration of the element). The drawback with univariate prediction models is that they are sensitive to matrix effects.…”

Section: Introductionmentioning

confidence: 99%

Use of Chemometrics and Laser-Induced Breakdown Spectroscopy for Quantitative Analysis of Major and Minor Elements in Aluminum Alloys

et al. 2007

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In the present work, quantitative analysis of major and minor elements in aluminum alloys is investigated using chemometrics and laser-induced plasma spectroscopy with a commercially available laser-induced breakdown (LIBS) spectrometer. Multivariate calibrations use the entire signal matrix for all elements in a single multivariate regression model. This enables accounting for the correlation between variables often referred to as matrix effects in conventional univariate modeling. Modeling the entire signal matrix improves robustness over traditional univariate calibration since it can compensate for matrix effects. Several nonlinear data pretreatment methods have been used to correct for nonlinear behaviors of the analytical signals prior to performing the multivariate calibration. The use of multivariate calibration in combination with cubic implicit nonlinear data pretreatment showed the most accurate results. The accuracy reported with the developed multivariate calibration is better than 5% for the major alloying elements. Based on the results obtained, the use of chemometrics and laser-induced plasma spectroscopy have been successfully applied to the quantitative analysis of major and minor alloying elements in aluminum.

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Section: Introductionmentioning

confidence: 99%

Use of Chemometrics and Laser-Induced Breakdown Spectroscopy for Quantitative Analysis of Major and Minor Elements in Aluminum Alloys

et al. 2007

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“…A number of LIBS studies have used time resolution of the emission signal to enhance signal to background ratios by recognizing that different decay rates characterize the continuum and atomic emission processes [34]. Spectral interference may also be minimized by taking into account the differing relaxation times between different elements [35] and ionization stages.…”

Section: Effect Of Time Resolution and Pressure On Spectramentioning

confidence: 99%

Laser-induced breakdown spectroscopy for space exploration applications: Influence of the ambient pressure on the calibration curves prepared from soil and clay samples

Sallé

Cremers

Maurice

et al. 2005

Spectrochimica Acta Part B: Atomic Spectroscopy

178

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“…[11][12][13][14] Many groups around the globe are working on LIBS quantitative elemental analysis using calibration curve method. [15][16][17][18][19][20] For this, generally, a calibration curve prepared by using the emission line intensity of the analyte material versus its concentration is used. The curves are constructed using known standard elemental concentrations in a matrix matching the sample.…”

Section: Introductionmentioning

confidence: 99%

Homogeneity testing and quantitative analysis of manganese (Mn) in vitrified Mn-doped glasses by laser-induced breakdown spectroscopy (LIBS)

et al. 2014

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Laser-induced breakdown spectroscopy (LIBS), an atomic emission spectroscopy method, has rapidly grown as one of the best elemental analysis techniques over the past two decades. Homogeneity testing and quantitative analysis of manganese (Mn) in manganese-doped glasses have been carried out using an optimized LIBS system employing a nanosecond ultraviolet Nd:YAG laser as the source of excitation. The glass samples have been prepared using conventional vitrification methods. The laser pulse irradiance on the surface of the glass samples placed in air at atmospheric pressure was about 1.7×109 W/cm2. The spatially integrated plasma emission was collected and imaged on to the spectrograph slit using an optical-fiber-based collection system. Homogeneity was checked by recording LIBS spectra from different sites on the sample surface and analyzing the elemental emission intensities for concentration determination. Validation of the observed LIBS results was done by comparison with scanning electron microscope- energy dispersive X-ray spectroscopy (SEM-EDX) surface elemental mapping. The analytical performance of the LIBS system has been evaluated through the correlation of the LIBS determined concentrations of Mn with its certified values. The results are found to be in very good agreement with the certified concentrations.

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UV laser ablation optical emission spectrometry on aluminum alloys in air at atmospheric pressure

Cited by 22 publications

References 9 publications

Use of Chemometrics and Laser-Induced Breakdown Spectroscopy for Quantitative Analysis of Major and Minor Elements in Aluminum Alloys

Use of Chemometrics and Laser-Induced Breakdown Spectroscopy for Quantitative Analysis of Major and Minor Elements in Aluminum Alloys

Laser-induced breakdown spectroscopy for space exploration applications: Influence of the ambient pressure on the calibration curves prepared from soil and clay samples

Homogeneity testing and quantitative analysis of manganese (Mn) in vitrified Mn-doped glasses by laser-induced breakdown spectroscopy (LIBS)

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