Computer simulations of sample chambers for laser ablation–inductively coupled plasma spectrometry

Bleiner, Davide; Bogaerts, Annemie

doi:10.1016/j.sab.2007.02.010

Cited by 46 publications

(34 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As described in our previous study, 52 the standard ablation cell in the GeoLas 2005 system was used, the gas outlet position was 7 Li, 9 Be, 11 B, 23 Na, 25 Mg, 27 Al, 29 Si, 31 P, 39 K, 42 Ca, 45 Sc, 49 Ti, 51 V, 52 Cr, 55 Mn, 57 Fe, 59 Co, 60 Ni, 65 Cu, 66 changed into the center of the cell using a needle with a nozzle tip (i.d. 0.6 mm) that enabled sampling at the ablation site.…”

Section: Local Aerosol Extraction Strategymentioning

confidence: 99%

Further investigation into ICP-induced elemental fractionation in LA-ICP-MS using a local aerosol extraction strategy

Luo

Wang

et al. 2015

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

The source and degree of elemental fractionation is one of the remaining challenges in LA-ICP-MS. In this study, the ICP-induced fractionation behavior of 63 elements was studied using a local aerosol extraction strategy while using a 193 nm excimer laser ablation system for sampling. We found that the sampling distance between the ablation site and the gas outlet nozzle tip positively correlated with the size of the laser ablation produced aerosol particles or agglomerates in the local aerosol extraction strategy.Therefore, the local aerosol extraction strategy allowed detailed studies of the ICP-induced fractionation behaviors for different elements. At a low makeup gas flow rate of 0.6 L min À1 (hot plasma conditions), the increase in the size of aerosol agglomerates or particles because of the increased sampling distance from 1 mm to 10 mm does not affect the ionization efficiency of the sample aerosol in ICP. In contrast, at a high makeup gas flow rate of 0.9 L min À1 , the normalized signal intensities of the elements significantly differ when the sampling distance increases from 1 mm to 10 mm. These experimental results suggest that the changes in the size of aerosol particles or agglomerates under our given conditions do not affect the transport efficiency of aerosol particles but affect the vaporization of aerosol particles in ICP. The mass load effect is more significant in the presence of large amounts of large aerosol particles and agglomerates, which deteriorates the vaporization of aerosol particles. Our experimental results also show that the sample position in the normal ablation cell affects the size of laser ablation produced aerosol particles or agglomerates. The high velocity of the carrier gas flow rate on the ablation site facilitates the production of small aerosol agglomerates or particles. To reduce the ICP-induced fractionation behaviors in LA-ICP-MS, hot plasma conditions and high velocity of the carrier gas flow rate on the ablation site are required.

show abstract

Section: Local Aerosol Extraction Strategymentioning

confidence: 99%

Further investigation into ICP-induced elemental fractionation in LA-ICP-MS using a local aerosol extraction strategy

Luo

Wang

et al. 2015

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

show abstract

“…Increased sensitivities are typically associated with the addition of He to the ablation cell. Improvements in sensitivity have been attributed to greater transport efficiencies of aerosol particles from the ablation cell to the ICP [49]. Our signal intensities obtained with added He were significantly lower than signals obtained during LA at 28 J cm −2 using Ar only.…”

Section: Helium Additionmentioning

confidence: 53%

Fluorescence imaging of ion distributions in an inductively coupled plasma with laser ablation sample introduction

Moses

Ellis

Jones³

et al. 2015

Spectrochimica Acta Part B: Atomic Spectroscopy

View full text Add to dashboard Cite

a b s t r a c tHigh-resolution images of the spatial distributions of Sc II, Ca II, and Ba II ion densities in the 10 mm upstream from the sampling cone in a laser ablation-inductively coupled plasma-mass spectrometer (LA-ICP-MS) were obtained using planar laser induced fluorescence. Images were obtained for each analyte as a function of the carrier gas flow rate with laser ablation (LA) sample introduction and compared to images with solution nebulization (SN) over the same range of flow rates. Additionally, images were obtained using LA at varying fluences and with varying amounts of helium added to a constant flow of argon gas. Ion profiles in SN images followed a pattern consistent with previous work: increasing gas flow caused a downstream shift in the ion profiles. When compared to SN, LA led to ion profiles that were much narrower radially and reached a maximum near the sampling cone at higher flow rates. Increasing the fluence led to ions formed in the ICP over greater axial and radial distances. The addition of He to the carrier gas prior to the ablation cell led to an upstream shift in the position of ionization and lower overall fluorescence intensities.

show abstract

“…Improvements in the original cylindrical ablation cell design have led to a variety of cell shapes and sizes that are available for modern laser ablation systems. Surprisingly, few theoretical studies have been carried out to predict the behaviour of laser aerosol within the cell (e.g., Bleiner and Günther , Bleiner and Bogaerts , Günther and Koch , Koch et al . ), and most of the development has been based on experimental designs.…”

Section: Advances In Plasma Source Mass Spectrometry (Contribution Bymentioning

confidence: 99%

GGR Biennial Critical Review: Analytical Developments Since 2010

Wiedenbeck

Bugoi

Duke

et al. 2012

Geostandard Geoanalytic Res

View full text Add to dashboard Cite

Advances in the chemical and isotopic characterisation of geological and environmental materials can often be ascribed to technological improvements in analytical hardware. Equally, the creation of novel methods of data acquisition and interpretation, including access to better reference materials, can also be crucial components enabling important breakthroughs. This biennial review highlights key advances in either instrumentation or data acquisition and treatment, which have appeared since January 2010. This review is based on the assessments by scientists prominent in each of the given analytical fields; it is not intended as an exhaustive summary, but rather provides insight from experts of the most significant advances and trends in their given field of expertise. In contrast to earlier reviews, this presentation has been formulated into a unified work, providing a single source covering a broad spectrum of geoanalytical techniques. Additionally, some themes that were not previously emphasised, in particular thermal ionisation mass spectrometry, accelerator‐based methods and vibrational spectroscopy, are also presented in detail.

show abstract

Computer simulations of sample chambers for laser ablation–inductively coupled plasma spectrometry

Cited by 46 publications

References 30 publications

Further investigation into ICP-induced elemental fractionation in LA-ICP-MS using a local aerosol extraction strategy

Further investigation into ICP-induced elemental fractionation in LA-ICP-MS using a local aerosol extraction strategy

Fluorescence imaging of ion distributions in an inductively coupled plasma with laser ablation sample introduction

GGR Biennial Critical Review: Analytical Developments Since 2010

Contact Info

Product

Resources

About