LIBS limit of detection and plasma parameters of some elements in two different metallic matrices

Ismail, Marwa A.; Imam, Hisham; Elhassan, Asmaa; Youniss, Walid T.; Harith, M. A.

doi:10.1039/b315588a

Cited by 120 publications

(69 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The elements analyzed in both papers were Mg, Si, Mn and Cu while the second paper Al, Ti, Cr, Fe and Ni were also analyzed. The LOD's obtained for Mn, Cu and Si in steel alloys were lower than in aluminum alloy, the opposite effect was obtained for the LOD for Mg. 204 A small improvement in detection limits (in comparison with single-pulse) was obtained when the double-pulse technique was employed in the aluminum alloy matrix. 205 These two papers show how the major elements of a given sample matrix can affect the detection of the other elements in both single and double-pulse modes, as a function of the plasma parameters and element properties.…”

Section: Alloys and Metallurgic Samplesmentioning

confidence: 99%

“…Ismail et al 204,205 compared the detection limits and plasma parameters of aluminum alloys and steel alloys with LIBS analyses. The emphasis of their first paper was to correlate the matrix effects and plasma parameters with different detection limits presented for the same elements in two different matrices, using single-pulse LIBS.…”

Section: Alloys and Metallurgic Samplesmentioning

confidence: 99%

“…The emphasis of their first paper was to correlate the matrix effects and plasma parameters with different detection limits presented for the same elements in two different matrices, using single-pulse LIBS. 204 The emphasis in the second paper was to correlate the matrix effects and plasma parameters with the enhancements of detection limits when the double-pulse technique was employed for the same elements in the two matrices. 205 Effects of the plasma temperature and electron density were investigated.…”

Section: Alloys and Metallurgic Samplesmentioning

confidence: 99%

See 2 more Smart Citations

Laser Induced Breakdown Spectroscopy

Pasquini¹,

Cortez²,

Silva³

et al. 2007

J. Braz. Chem. Soc.

342

195

View full text Add to dashboard Cite

Esta revisão descreve os aspectos fundamentais, a instrumentação, as aplicações e tendências futuras de uma técnica analítica que se encontra em seu estágio de consolidação e que está em vias de estabelecer o seu nicho entre as técnicas espectrofotométricas modernas. A técnica é denominada Espectroscopia de Emissão em Plasma Induzido por Laser (em inglês, Laser Induced Breakdown Spectroscopy, LIBS) e sua principal característica está no uso de pulsos de laser como fonte de energia para vaporizar a amostra e excitar a emissão de radiação eletromagnética, a partir de seus elementos e/ou fragmentos moleculares. A radiação emitida é analisada por meio de instrumentos ópticos de alta resolução e as suas intensidades são medidas, usualmente com detectores rápidos de estado sólido. Em conjunto, esses dispositivos permitem a geração e a medida de um espectro de emissão de faixa ampla do fenômeno induzido pelo pulso de laser. O espectro registrado contém informação qualitativa e quantitativa que pode ser correlacionada com a identidade da amostra ou empregada na determinação da quantidade de seus constituintes. Essa revisão é dividida em quatro partes. A primeira aborda aspectos históricos da técnica e os conceitos teóricos relevantes associados com LIBS; então, os aspectos práticos de diversas abordagens experimentais e instrumentais empregadas na implementação da técnica são revistos de forma crítica; as aplicações encontradas na literatura, incluindo aquelas que empregam quimiometria, são classificadas e exemplificadas por meio de trabalhos relevantes recentemente publicados. Finalmente, uma tentativa de estabelecer uma avaliação global e as perspectivas futuras para a técnica é apresentada.This review describes the fundamentals, instrumentation, applications and future trends of an analytical technique that is in its early stages of consolidation and is establishing its definitive niches among modern spectrometric techniques. The technique has been named Laser Induced Breakdown Spectroscopy (LIBS) and its main characteristic stands in the use of short laser pulses as the energy source to vaporize samples and excite the emission of electromagnetic radiation from its elements and/or molecular fragments. The emitted radiation is analyzed by high resolution optics and the intensities are recorded, usually by fast triggered solid state detectors. Together, these devices allow producing and registering a wide ranging emission spectrum of the short-lived phenomenon induced by the laser pulse. The spectrum contains qualitative and quantitative information which can be correlated with sample identity or can be used to determine the amount of its constituents. This review is divided in four parts. First, the relevant historical and theoretical concepts associated with LIBS are presented; then the main practical aspects of the several experimental and instrumental approaches employed for implementation of the technique are critically described; the applications related in the literature, including those making use of chemometri...

show abstract

Section: Alloys and Metallurgic Samplesmentioning

confidence: 99%

Section: Alloys and Metallurgic Samplesmentioning

confidence: 99%

Section: Alloys and Metallurgic Samplesmentioning

confidence: 99%

See 1 more Smart Citation

Laser Induced Breakdown Spectroscopy

Pasquini¹,

Cortez²,

Silva³

et al. 2007

J. Braz. Chem. Soc.

342

195

View full text Add to dashboard Cite

show abstract

“…For the specific case of the echelle spectrometer, we can also compare to results obtained previously in ref. [36][37][38], where a lot more energy is used (i.e. 60 mJ pulse…”

Section: Aluminium Samples' Analysismentioning

confidence: 99%

Evaluation of a compact high power pulsed fiber laser source for laser-induced breakdown spectroscopy

Gravel

Doucet

Bouchard

et al. 2011

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

The aim of the present work is to evaluate the potential of a fast growing laser technology, the fiber laser, in the field of laser-induced breakdown spectroscopy (LIBS). Many compact fiber lasers are now available, which produce a high quality beam and deliver sufficient energy to generate optically interesting plasmas for analytical purposes at very high repetition rates. This technology has not been yet seriously investigated for LIBS applications. We summarize here the main specifications and analytical performances of this laser source coupled to three different spectrometers for the analysis of aluminium samples. Limits of detection in the low mg g À1 range are calculated for magnesium, copper, manganese, silicon, iron and chromium. Using a compact spectrometer, a low limit of detection of 1.1 mg g À1 is obtained for magnesium in aluminium. Ablation craters produced on aluminium are also characterized. Finally, we briefly illustrate the possibilities of the fiber laser for the LIBS analysis of another matrix, calculating limits of detection that are below 20 mg g À1 for silver, iron and nickel in copper. Fig. 1 Conceptual representation of a master oscillator power amplifier.

show abstract

“…By linear regression analysis, the integrated intensity curve, with R 2 =0.9999 provides a better calibration curve for determining the limit of detection (LOD), than the peak intensity curve which gave R 2 =0.9985. Using the IUPAC definition [8] for limit of detection (LOD=3σ B /S), where σ B is the standard deviation of the background and S is the slope of the calibration curve, a LOD of ~0.19 wt%/wt. was obtained under the given experimental conditions.…”

mentioning

confidence: 99%

Concentration Dependent Studies on the Laser-Induced Mid-Infrared Emission from KCl-NaCl Tablets

Oyebola

Hömmerich

Brown

et al. 2011

Photon. Lett. Poland

View full text Add to dashboard Cite

Abstract-Laser Induced Breakdown Spectroscopy (LIBS) is atechnique for determining the elemental composition of a chemical substance [1]. Pumping with a 1064nm Nd:YAG pulse laser, midinfrared emissions from LIBS plasma produced from KCl were examined between 2.0μm and 4.5μm, with atomic emission lines observed at 2.72μm, 3.15μm, 3.77μm and 4.05μm for potassium, consistent with NIST atomic spectra database. With further focus on the 2.72μm emission, detection limit studies were carried on different concentration samples of KCl_NaCl mix, to determine the detection limit of potassium (K). A limit of detection of ~0.19wt%/wt was obtained for potassium in the mid-IR region.

show abstract

LIBS limit of detection and plasma parameters of some elements in two different metallic matrices

Cited by 120 publications

References 22 publications

Laser Induced Breakdown Spectroscopy

Laser Induced Breakdown Spectroscopy

Evaluation of a compact high power pulsed fiber laser source for laser-induced breakdown spectroscopy

Concentration Dependent Studies on the Laser-Induced Mid-Infrared Emission from KCl-NaCl Tablets

Contact Info

Product

Resources

About