A local aerosol extraction strategy for the determination of the aerosol composition in laser ablation inductively coupled plasma mass spectrometry

Hu, Zhaochu; Liu, Yongsheng; Gao, Shan; Hu, Shenghong; Dietiker, Rolf; Günther, Detlef

doi:10.1039/b803934h

Cited by 118 publications

(66 citation statements)

References 66 publications

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“…Moreover, the particlesize-related fractionation effects are different for aerosols ablated by a 266 nm laser and those ablated by a 193 nm laser. REE and HFSE tend to be enriched in the smaller aerosol particles when a 266 nm laser is used [103]; however, they tend to be enriched in the larger aerosol particles when a 193 nm laser is used [104].…”

Section: Elemental Fractionation In Ablation Transport and Excitatiomentioning

confidence: 99%

“…A femtosecond laser is not only predominantly non-thermal and causes less collateral damage than a laser with longer pulses, but it also provides smaller particle sizes for aerosols and no laserplasma interactions and has the potential to eliminate fractionation effects and matrix dependence [34]. The fractionation effect could also be diminished through optimization of the volume and geometry of an ablation cell to improve the efficiency and stability of aerosol transportation and to decrease the particle sizes and their distribution [104,[106][107][108].…”

Section: Elemental Fractionation In Ablation Transport and Excitatiomentioning

confidence: 99%

“…Míková et al [98] found that the fractionation trends of the alkali elements are different from those of other lithophile elements and that a combination of thermally driven diffusion and size-dependent particle fractionation are responsible for the observed fractionation of alkali elements during laser ablation of silicate samples. Kuhn and Günther [103] and Hu et al [104] found that the trace-element patterns of aerosols vary significantly with particle size; for example, small aerosol particles are rich in chalcophile elements (i.e. Cu, Zn, Ag, Cd, Sn, Sb, Pb and Bi).…”

Section: Elemental Fractionation In Ablation Transport and Excitatiomentioning

confidence: 99%

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Applications of LA-ICP-MS in the elemental analyses of geological samples

Liu

et al. 2013

Chin. Sci. Bull.

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105

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Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), which is a rapidly developing analytical technique for the analyses of trace elements and isotopes, plays an important role in advancing the study of Earth science, especially with respect to micro-geochemistry. This article reviews the application of LA-ICP-MS in the elemental analysis of solid geological samples. Although LA-ICP-MS has been widely used in the spatial resolution analysis of element compositions and rapid bulk analysis of whole-rock and soil samples, the analysis accuracy is restricted by numerous factors, including the instrumental conditions, the elemental fractionation and matrix effects, the lack of sufficient matrix-matched reference materials, and the strategies for quantitative calibration and sensitivity drift correction. According to the type of samples and the analyte elements, the analysis accuracy can be improved through the optimization of instrument conditions and the adoption of suitable correction strategies and reference materials. LA-ICP-MS, geological sample, elemental analysis, quantitative strategy Citation:Liu Y S, Hu Z C, Li M, et al. Applications of LA-ICP-MS in the elemental analyses of geological samples.

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Section: Elemental Fractionation In Ablation Transport and Excitatiomentioning

confidence: 99%

Section: Elemental Fractionation In Ablation Transport and Excitatiomentioning

confidence: 99%

Section: Elemental Fractionation In Ablation Transport and Excitatiomentioning

confidence: 99%

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Applications of LA-ICP-MS in the elemental analyses of geological samples

Liu

et al. 2013

Chin. Sci. Bull.

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105

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“…This technique, however, can only provide semiquantitative information. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is a powerful analytical technique for direct elemental mapping of abiotic and biotic samples (Hu et al, 2008) and was used here as a supplemental method of elemental mapping of the HE S. alfredii plants under Cd exposure. Additionally, the speciation of Cd within HE S. alfredii plants was investigated by extended x-ray absorption fine structure (EXAFS).…”

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confidence: 99%

Cellular Sequestration of Cadmium in the Hyperaccumulator Plant Species Sedum alfredii

et al. 2011

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Spatial imaging of cadmium (Cd) in the hyperaccumulator Sedum alfredii was investigated in vivo by laser ablation inductively coupled plasma mass spectrometry and x-ray microfluorescence imaging. Preferential Cd accumulation in the pith and cortex was observed in stems of the Cd hyperaccumulating ecotype (HE), whereas Cd was restricted to the vascular bundles in its contrasting nonhyperaccumulating ecotype. Cd concentrations of up to 15,000 mg g 21 were measured in the pith cells, which was many fold higher than the concentrations in the stem epidermis and vascular bundles in the HE plants. In the leaves of the HE, Cd was mainly localized to the mesophyll and vascular cells rather than the epidermis. The distribution pattern of Cd in both stems and leaves of the HE was very similar to calcium but not zinc, irrespective of Cd exposure levels. Extended x-ray absorption fine structure spectroscopy analysis showed that Cd in the stems and leaves of the HE was mainly associated with oxygen ligands, and a larger proportion (about 70% in leaves and 47% in stems) of Cd was bound with malic acid, which was the major organic acid in the shoots of the plants. These results indicate that a majority of Cd in HE accumulates in the parenchyma cells, especially in stems, and is likely associated with calcium pathways and bound with organic acid (malate), which is indicative of a critical role of vacuolar sequestration of Cd in the HE S. alfredii.

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“…[8][9][10] Fundamental mechanisms of laser ablation, such as vaporization, ionization, and generation of particles, have been studied in efforts to achieve stoichiometric ablation, and ionization mechanisms in ICP also have been investigated. [11][12][13][14][15][16][17] It has been reported that when particles generated by LA were introduced into the ICP, mass-load-dependent matrix effects were caused in LA-ICPMS. 4 Therefore, various quantitative strategies using LA-ICPMS have been developed.…”

Section: Introductionmentioning

confidence: 99%

Temporal Changes of Fractionation Index Caused by Changes in the Large Size of Ablated Particles in Laser Ablation-Inductively Coupled Plasma Mass Spectrometry

2015

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To elucidate mechanisms of elemental fractionation that are observed in laser ablation-inductively coupled plasma mass spectrometry, the relative intensities of 34 elements, each normalized by a Ca internal standard, were measured every minute during a 10-min laser ablation of an NIST 610 glass standard. Temporal changes in the fractionation index (FI) were obtained by dividing the relative intensity of every minute by that of the first minute. The particles generated by laser ablation were collected on a filter every minute, and they were observed using scanning electron microscopy to investigate changes in the large size of particles. Large variations among the large size of particles were observed using single-site mode and under 1.0 mm defocus conditions. The 34 measured elements were classified into two groups, depending on their observed FI variation. The FI variation was rationalized by elemental behavior due to changes in the large size of ablated particles introduced into the ICP.

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A local aerosol extraction strategy for the determination of the aerosol composition in laser ablation inductively coupled plasma mass spectrometry

Cited by 118 publications

References 66 publications

Applications of LA-ICP-MS in the elemental analyses of geological samples

Applications of LA-ICP-MS in the elemental analyses of geological samples

Cellular Sequestration of Cadmium in the Hyperaccumulator Plant Species Sedum alfredii

Temporal Changes of Fractionation Index Caused by Changes in the Large Size of Ablated Particles in Laser Ablation-Inductively Coupled Plasma Mass Spectrometry

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