Elemental fractionation in the formation of particulates, as observed by simultaneous isotopes measurement using laser ablation ICP-oa-TOFMS

Козлов, Б. Н.; Saint, A.; Skroce, Anna

doi:10.1039/b302022c

Cited by 40 publications

(30 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, incomplete evaporation of larger particles in the ICP was shown to be dominating over non-stoichiometric ablation with respect to elemental fractionation. Kozlov et al [14] demonstrated differences in elemental composition within the particle fractions by time resolved LA-ICPTOFMS measurements of single pulses.…”

Section: Introductionmentioning

confidence: 98%

Phenomenological studies on structure and elemental composition of nanosecond and femtosecond laser-generated aerosols with implications on laser ablation inductively coupled plasma mass spectrometry

Glaus

Kaegi

Krumeich

et al. 2010

Spectrochimica Acta Part B: Atomic Spectroscopy

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 98%

Phenomenological studies on structure and elemental composition of nanosecond and femtosecond laser-generated aerosols with implications on laser ablation inductively coupled plasma mass spectrometry

Glaus

Kaegi

Krumeich

et al. 2010

Spectrochimica Acta Part B: Atomic Spectroscopy

View full text Add to dashboard Cite

“…Furthermore, if volatile elements are enriched in the gas phase, 5 they tend to condense on the tubing or on small particles, resulting in a different transport efficiency compared with less volatile elements transported in the larger particle size fraction. 10 For glass ablations, elemental fractionation into different sized particles has been expected since refractory elements condense earlier from the laser plasma and are therefore enriched in the larger particles. 7 Small particles from brass ablation were found to be enriched in the more volatile zinc.…”

Section: Introductionmentioning

confidence: 99%

Laser ablation-ICP-MS: particle size dependent elemental composition studies on filter-collected and online measured aerosols from glass

Kühn

Günther

2004

J. Anal. At. Spectrom.

160

147

View full text Add to dashboard Cite

In laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), the term elemental fractionation is normally used to summarize all non-stoichiometric effects occurring during sample ablation, aerosol transport and vaporization, atomisation and ionisation within the ICP. Nevertheless, there are different types of elemental fractionation occurring between different sized particles within an aerosol, as previously shown for metal alloy ablations. In the present work, laser generated aerosols from glass samples were filter collected before entering the ICP to study their total and particle size dependent composition. Furthermore, elemental concentrations in different particle size fractions on filters were compared with their response measured in the ICP. For the NIST SRM 610 glass, elemental fractionation effects between small particles (v125 nm and v340 nm), and the total aerosol containing all particle sizes up to 1 mm or even larger, were measured for 42 major and trace elements using a 266 nm Nd:YAG laser and scanning ablation conditions to produce the aerosol. Particles above 125 nm and 340 nm were separated from the aerosol by a particle separation device and the remaining particles were collected on a filter, digested and measured using solution nebulization ICP sector field MS (SFMS). Results show an enrichment of certain elements such as Cu, Zn, Ag, Tl, Pb and Bi of up to 90% relative to Ca within the small particle size fraction of an aerosol in comparison with the total composition of the aerosol. The same elements are depleted in large aerosol particles measured from deposited particles within the ablation cell. However, the total transportable aerosols produced using different laser wavelengths (193/266 nm), and gas environments (He/Ar), which were also filtered and digested show no significant deviation in their overall stoichiometry from the original sample (except Be, Fe, Cd for all lasers and gases) within the uncertainty of the measurements. Therefore, the composition of filter collected aerosol of glass samples indicates that the elemental fractionation in LA-ICP-MS, detected at the beginning of a 266 nm single hole ablation, is predominantly caused by incomplete vaporization of large particles within the ICP and is not dominated by non-stoichiometric ablation of the glass. 1 1 5 8 J . A n a l . A t . S p e c t r o m . , 2 0 0 4 , 1 9 , 1 1 5 8 -1 1 6 4 T h i s j o u r n a l i s ß T h e R o y a l S o c i e t y o f C h e m i s t r y 2 0 0 4 J . A n a l . A t . S p e c t r o m . , 2 0 0 4 , 1 9 , 1 1 5 8 -1 1 6 4 J . A n a l . A t . S p e c t r o m . , 2 0 0 4 , 1 9 , 1 1 5 8 -1 1 6 4 View Article Online J . A n a l . A t . S p e c t r o m . , 2 0 0 4 , 1 9 , 1 1 5 8 -1 1 6 4 J . A n a l . A t . S p e c t r o m . , 2 0 0 4 , 1 9 , 1 1 5 8 -1 1 6 4

show abstract

“…Fractionation can be described in two ways, non-stoichiometric ablation from a single laser pulse, or the time dependent change in elemental ratio as a crater is formed during repetitive laser pulsing at one sample location. Fractionation is not due to laser ablation alone, as fractionation can and does occur during transport and in the ICP-MS. [54][55][56] Ablation does not necessarily produce the same amount of mass from each laser pulse, and the particle size distribution can change from pulse to pulse. Each of these effects will influence precision.…”

Section: Introduction-overviewmentioning

confidence: 99%

Laser assisted plasma spectrochemistry: laser ablation

Russo

Mao

Liu

et al. 2004

J. Anal. At. Spectrom.

133

View full text Add to dashboard Cite

This paper presents a brief overview of the current research issues in laser ablation for chemical analysis, discusses several fundamental studies of laser ablation using time-resolved shadowgraph and spectroscopic imaging, and describes recent data using femtosecond ablation sampling for ICP-MS and LIBS. This manuscript represents a summary of the plenary lecture presented at the 2004 Winter Conference on Plasma Spectrochemistry.

show abstract

Elemental fractionation in the formation of particulates, as observed by simultaneous isotopes measurement using laser ablation ICP-oa-TOFMS

Cited by 40 publications

References 19 publications

Phenomenological studies on structure and elemental composition of nanosecond and femtosecond laser-generated aerosols with implications on laser ablation inductively coupled plasma mass spectrometry

Phenomenological studies on structure and elemental composition of nanosecond and femtosecond laser-generated aerosols with implications on laser ablation inductively coupled plasma mass spectrometry

Laser ablation-ICP-MS: particle size dependent elemental composition studies on filter-collected and online measured aerosols from glass

Laser assisted plasma spectrochemistry: laser ablation

Contact Info

Product

Resources

About