Detailseite
Projekt Druckansicht

Development of strategies for improving the overall performance of laser-ablation-ICP-spectrometry

Antragsteller Professor Dr. Kay Niemax
Fachliche Zuordnung Analytische Chemie
Förderung Förderung von 2004 bis 2008
Projektkennung Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 5418875
 
The fractionation and transport phenomena of laser-produced aerosols will be examined in order to develop strategies for improving the performance of laser ablation (LA) inductively coupled plasma (ICP) spectrometry. For this purpose, the size distribution and composition of aerosols will be measured under various experimental conditions using nano- as well as femtosecond laser ablation. On the basis of the results achieved, optimum conditions for the quantitative analysis of metallic and non-metallic samples will be specified. The final goal is the matrix-independent analysis by LA-ICP-spectrometry. Furthermore, an ablation cell will be developed which provides enhanced transport efficiency and minimum aerosol dispersion. Taking into account the size distribution and kinetic properties of the laser-produced particles, volume and geometry of the ablation cell will be optimized applying numerical simulations. The analytical performance of the cell will be investigated by ICP-optical emission spectrometry as well as ICP-mass spectrometry. It is also planned to study aerosol transport by pneumatic suction as an alternative to conventional advection-tpye ablation cells.
DFG-Verfahren Sachbeihilfen
Beteiligte Person Dr. Joachim Koch
 
 

Zusatzinformationen

Textvergrößerung und Kontrastanpassung