Abstract
A constant-fraction discrimination (CFD) system has been combined with a boxcar integrator for detection in inductively coupled plasma/time-of-flight mass spectrometry. The discriminator provides gating logic for the boxcar integrator when an incoming ion signal occurs, but discriminates against electronic or background noise of lower amplitude. As a result, the combination can effectively <i>reject</i> noise and accumulate analyte signal, rather than relying on an averaging process to reduce noise levels. The signal-to-noise ratio is therefore enhanced in this operation compared with the conventional boxcar method. The dynamic range of the detection system is at least five orders of magnitude.
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