Abstract
High-voltage spark ablation is used for the direct analysis of solid samples using ICP-MS detection. Separation of sample vaporization, excitation, and detection phenomena allows each event to be optimized independently, thereby facilitating (among other things) enhanced sampling efficiency. Qualitative evaluation of elemental constituents is demonstrated. A direct linear relationship between electron multiplier counts and concentration was observed for trace elements (ranging from 0.75 to 125 ppm) in a series of "pure" copper standards. It is significant that neither concentration normalization nor internal standardization procedures were required. Sample uptake and clean-out times are minimal. This technique can be applied for the direct determination of conductive samples (or materials that can be converted into conductive form) with little no sample preparation. For such samples, spark ablation could serve as an alternative to laser sampling in cases where larger sampling site(∼1-2 mm) can be tolerated. In contrast, this technique uses inexpensive instrumentation, is simple to operate, and shows good accuracy and precision, even in prototype form.
PDF Article
More Like This
Multielemental analysis of prehistoric animal teeth by laser-induced breakdown spectroscopy and laser ablation inductively coupled plasma mass spectrometry
Michaela Galiová, Jozef Kaiser, Francisco J. Fortes, Karel Novotný, Radomír Malina, Lubomír Prokeš, Aleš Hrdlička, Tomáš Vaculovič, Miriam Nývltová Fišáková, Jiří Svoboda, Viktor Kanický, and Javier J. Laserna
Appl. Opt. 49(13) C191-C199 (2010)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription