A comparison of nanosecond and femtosecond laser-induced plasma spectroscopy of brass samples

Margetic, Vanja; Pakulev, A. V.; Stockhaus, A.; Bolshov, M.A.; Niemax, K.; Hergenröder, Roland

doi:10.1016/s0584-8547(00)00275-5

Cited by 232 publications

(131 citation statements)

References 26 publications

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“…Koch et al, 2002;Guillong et al, 2003). These effects, however, appear to be largely absent for fs LA (Garcia et al, 2008a, b;Horn and von Blanckenburg, 2007;Koch et al, 2004;Liu et al, 2004;Margetic et al, 2000;Saetveit et al, 2008;Wälle et al, 2008). Other matrix effects can be relevant for both ns and fs LA.…”

Section: Discussionmentioning

confidence: 99%

Matrix-independent Fe isotope ratio determination in silicates using UV femtosecond laser ablation

2009

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UV femtosecond laser ablation coupled to MC-ICP-MS provides a promising in situ tool to investigate elemental and isotope ratios by non-matrix-matched calibration. In this study, we investigate Fe isotope composition in siliceous matrices including biotite, hornblende, garnet, fayalite and forsterite (San Carlos Olivine), and an oceanic Fe-Mn crust using the iron reference material IRMM-014 for calibration. Fe, respectively. This study adds to the observations of Horn et al. (2006) who have shown that the determination of Fe isotope ratios in various matrices including iron alloys, iron oxides and hydroxides, iron sulfide and iron carbonates can be performed with high accuracy and precision at high spatial resolution using UV femtosecond laser ablation ICP-MS. These results demonstrate that femtosecond laser ablation ICP-MS is a largely matrix-independent method, which provides a substantial advantage over commonly employed nanosecond laser ablation systems.

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Section: Discussionmentioning

confidence: 99%

Matrix-independent Fe isotope ratio determination in silicates using UV femtosecond laser ablation

2009

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“…98,99 In addition, as the pulse energy is delivered over a very short time duration, higher irradiances are achieved with lower ablation threshold energies. 92,100 The higher ablation efficiencies are due to a precise material removal by explosive ejection of matter practically without any thermal (such as melting) or mechanical damage to the sample surrounding the ablated region, 101,102 leading to higher repeatabilities on successive ablations and lower relative standard deviations (RSD) on emission measurements. The lower plasma temperatures lead to lower blackbody (fourth power temperature dependent) and background emissions, 94,95 allowing the detection to start earlier after the application of the laser pulse (sometimes without any time delay), 93,94 and practically negligible emission from the surrounding atmosphere.…”

Section: +mentioning

confidence: 99%

Laser Induced Breakdown Spectroscopy

Pasquini¹,

Cortez²,

Silva³

et al. 2007

J. Braz. Chem. Soc.

341

195

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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...

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“…1 For metals, which represent the most critical class of material in terms of zone heating, thermal relaxation takes place on a time-scale of few hundred fs. Reducing the pulse duration down to this region has, therefore, been suggested to improve the ablation characteristics and to get closer to the ideal concept of matrixindependent, "stoichiometric" LA [17].…”

Section: The Concept Of Stoichiometric Samplingmentioning

confidence: 99%

Femtosecond laser ablation inductively coupled plasma mass spectrometry: achievements and remaining problems

Koch

Günther

2006

Anal Bioanal Chem

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A comparison of nanosecond and femtosecond laser-induced plasma spectroscopy of brass samples

Cited by 232 publications

References 26 publications

Matrix-independent Fe isotope ratio determination in silicates using UV femtosecond laser ablation

Matrix-independent Fe isotope ratio determination in silicates using UV femtosecond laser ablation

Laser Induced Breakdown Spectroscopy

Femtosecond laser ablation inductively coupled plasma mass spectrometry: achievements and remaining problems

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