Laser ablation inductively coupled plasma mass spectrometry

Alexander, M. L.; Smith, Mary Ellen; Hartman, John S.; Mendoza, Albert; Koppenaal, David W.

doi:10.1016/s0169-4332(97)00640-5

Cited by 57 publications

(59 citation statements)

References 12 publications

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“…Laser ablation coupled to a highly sensitive ICP mass spectrometer had been widely used for spatial and surface analysis of various materials; the technique is rapid and does not require lengthy sample preparation [22][23][24] . Figure 4 delineates a grid along which the laser traverses and serves as a useful irradiation plan for both surface and depth studies.…”

Section: Spatial and Surface Studiesmentioning

confidence: 99%

Deep-UV Ablative Laser Technology: A Technical Review

Pillay¹,

Samuel²,

Elkadi³

et al. 2017

Res. Rev. J Mat. Sci

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Ablative laser technology has been used successfully as a tool in scientific applications particularly to evaluate the homogeneity of materials and to depth-profile samples with the object of attaining elemental distribution at subsurface levels. Pulsed micro-beams strike a target with pinpoint accuracy and produce trace elemental information both spatially and in the substrate. Exploring different strata of a sample can produce data on impurities buried deep within the sample matrix. This is particularly important in cases where hidden impurities can make a difference to the performance of certain samples, such as semi-conductors or biomedical specimens. Stochastic effects such as imperfect crater formation, erratic energy pulses and unpredictable drift in beam energy could significantly affect the results of research applications. These technical features are controlled by sophisticated software, which plays a salient role in stabilizing the instrument. Samples are usually heterogeneous in nature, such as rocks, reservoir cores and concrete structures, and sample heterogeneity, therefore, is a factor that precludes adoption of conventional protocol for standardization of the technique. Soft samples such as gels and waxes could undergo standardization under special conditions. However, the technique is largely semi-quantitative for solids and is particularly attractive for exploring the homogeneity of solid targets, which reflects the level of elemental distribution within the sample matrix. The laser unit is coupled to a Perkin Elmer ICP-MS instrument and maintenance of consistent operation parameters is crucial for accurate and reproducible results. The laser beam wavelength is in the deep UV region and the system is operated with a beam of 213 nm of variable diameter between 5-100 μm, gas flow of 0.8 L/min, energy pulse rate of 60 MHz, and beam energy between 30-60%. Compared to other current instrumental techniques, ablative laser technology is superior for depth-profiling and surface analysis.

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Section: Spatial and Surface Studiesmentioning

confidence: 99%

Deep-UV Ablative Laser Technology: A Technical Review

Pillay¹,

Samuel²,

Elkadi³

et al. 2017

Res. Rev. J Mat. Sci

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“…introduced into the ICP [36][37][38]. Even if the water content in the carrier gas stream is kept constant, the atomization and excitation characteristics can be different for the nebulized solution sample versus laser ablated particles [38] due to size differences in dried aerosol versus laserablated particles [39].…”

Section: Experimental Set-upmentioning

confidence: 99%

Comparison of matrix effects in inductively coupled plasma using laser ablation and solution nebulization for dry and wet plasma conditions

Chan

Mao

et al. 2001

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…The number of particles and their size distribution depends on the laser and sample properties. 22,47,48 The volume distribution of lasergenerated particles changes with respect to the laser wavelength; there are more large particles generated with an IR laser than with a UV laser. 48 Since melting and melt-fusing may be responsible for the generation of particles, a thicker molten layer may produce a greater fraction of large particles.…”

Section: Mass Transport Efficiencymentioning

confidence: 99%

Laser Ablation in Atomic Spectroscopy

Russo

Mao

Borisov

et al. 2000

Encyclopedia of Analytical Chemistry

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Laser ablation (LA) is a unique technique to transform a solid sample into vapor‐phase constituents, which then can be chemically analyzed by atomic spectroscopy. Ablation brings many exciting capabilities to the field of chemical analysis, primarily because of the laser‐beam properties. The ability to analyze directly any solid samplewithout sample preparation and minimal sample‐quantity requirements are just some of the unique capabilities. This article discusses current issues related to using LA in atomic spectroscopy. A general introduction to LA sampling is presented along with a comparison with other solid sampling techniques. The critical issues for all analytical techniques are calibration, accuracy, and sensitivity. Techniques that have been demonstrated to address these analytical characteristics and define these parameters for LA are investigated in detail. Finally, many unique applications are described, ranging from dating geological materials to providing crime‐scene evidence. Most of these applications could not be performed without the use of a laser beam. The inductively coupled plasma (ICP) will be emphasized in this article because it is currently the most prevalent excitation and ionization source for chemical analysis using LA.

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Laser ablation inductively coupled plasma mass spectrometry

Cited by 57 publications

References 12 publications

Deep-UV Ablative Laser Technology: A Technical Review

Deep-UV Ablative Laser Technology: A Technical Review

Comparison of matrix effects in inductively coupled plasma using laser ablation and solution nebulization for dry and wet plasma conditions

Laser Ablation in Atomic Spectroscopy

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