Effect of particle size distribution on ICP-induced elemental fractionation in laser ablation-inductively coupled plasma-mass spectrometry

2002 ◽  
Vol 17 (8) ◽  
pp. 831-837 ◽  
Author(s):  
Marcel Guillong ◽  
Detlef Günther
2015 ◽  
Vol 30 (12) ◽  
pp. 2412-2419 ◽  
Author(s):  
Ryo Machida ◽  
Takashi Nakazawa ◽  
Yuka Sakuraba ◽  
Masahide Fujiwara ◽  
Naoki Furuta

Size-related elemental fractionation during LAL sampling was investigated separately from elemental fractionation in the ICP and the elemental fractionation in the ICP was larger than that observed during LAL sampling.


1997 ◽  
Vol 51 (8) ◽  
pp. 1185-1192 ◽  
Author(s):  
Deborah Figg ◽  
Michael S. Kahr

Three laser wavelengths (1064, 532, and 266 nm) were employed for laser ablation at varied laser pulse energies to study the effect of irradiance and wavelength upon analytical results for laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Two important results were observed and are reported here: (1) the intensity of the MS signal came to a local minimum when the laser focal point was on the sample surface, and (2) elemental fractionation based upon laser wavelength and laser pulse energy was observed. For the waste glass simulant studied, ablation with 1064-nm (IR) and 532-nm (green) radiation produced elemental fractionation that relates to the melting point of the elemental oxide, whereas with 266-nm (UV) ablation the response was independent of the elemental oxide melting point. At high laser powers, ablation at 266 nm produced an elemental bias based upon the mass of the elements. These observations suggest the use of ultraviolet radiation at low pulse energies to obtain improved analytical results.


2020 ◽  
Vol 35 (12) ◽  
pp. 2893-2900
Author(s):  
Markéta Holá ◽  
Zita Salajková ◽  
Aleš Hrdlička ◽  
Jakub Ondráček ◽  
Karel Novotný ◽  
...  

The presence of gold nanoparticles on the metallic sample surface positively changes the particle size distribution of the laser ablation aerosol.


2016 ◽  
Vol 31 (3) ◽  
pp. 809-814 ◽  
Author(s):  
Ryo Machida ◽  
Takashi Nakazawa ◽  
Naoki Furuta

Temporal changes of fractionation indexes during laser ablation were investigated by evaluating the size distribution and chemical composition of ablated particles.


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