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Inductively Coupled Plasma: Fundamental Particle Investigations with Laser Ablation and Applications in Magnetic Sector Mass Spectrometry, (Thesis/Dissertation).

DE2008939379

Publication Date	2008
Personal Author	Saetveit, N. J.
Page Count	93
Abstract	Particle size effects and elemental fractionation in laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) are investigated with nanosecond and femtosecond laser ablation, differential mobility analysis, and magnetic sector ICP-MS. Laser pulse width was found to have a significant influence on the LA particle size distribution and the elemental composition of the aerosol and thus fractionation. Emission from individual particles from solution nebulization, glass, and a pressed powder pellet are observed with high speed digital photography. The presence of intact particles in an ICP is shown to be a likely source of fractionation. A technique for the online detection of stimulated elemental release from neural tissue using magnetic sector ICP-MS is described. Detection limits of 1 (micro)g L(sup -1) or better were found for P, Mn, Fe, Cu, and Zn in a 60 (micro)L injection in a physiological saline matrix.
Keywords	Magnetic fields Ablation Aerosols Detection Distribution Pellets Photography Sensitivity Velocity Elementary particles Fractionation Glass Lasers Mass spectroscopy Particle size
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Ames Lab., IA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200906
Contract Number	DE-AC02-07CH11358

Inductively Coupled Plasma: Fundamental Particle Investigations with Laser Ablation and Applications in Magnetic Sector Mass Spectrometry, (Thesis/Dissertation).

Inductively Coupled Plasma: Fundamental Particle Investigations with Laser Ablation and Applications in Magnetic Sector Mass Spectrometry, (Thesis/Dissertation).
DE2008939379

Publication Date	2008
Personal Author	Saetveit, N. J.
Page Count	93
Abstract	Particle size effects and elemental fractionation in laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) are investigated with nanosecond and femtosecond laser ablation, differential mobility analysis, and magnetic sector ICP-MS. Laser pulse width was found to have a significant influence on the LA particle size distribution and the elemental composition of the aerosol and thus fractionation. Emission from individual particles from solution nebulization, glass, and a pressed powder pellet are observed with high speed digital photography. The presence of intact particles in an ICP is shown to be a likely source of fractionation. A technique for the online detection of stimulated elemental release from neural tissue using magnetic sector ICP-MS is described. Detection limits of 1 (micro)g L(sup -1) or better were found for P, Mn, Fe, Cu, and Zn in a 60 (micro)L injection in a physiological saline matrix.
Keywords	Magnetic fields Ablation Aerosols Detection Distribution Pellets Photography Sensitivity Velocity Elementary particles Fractionation Glass Lasers Mass spectroscopy Particle size
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Ames Lab., IA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200906
Contract Number	DE-AC02-07CH11358