Abstract
A double quadrupole arrangement to remove polyatomic ions by collisions with an added target gas has been evaluated. The ions Ar<sub>2</sub><sup>+</sup>, ArO<sup>+</sup>, and ArN<sup>+</sup> were attenuated by factors of 50-400 to count rates of \lesssim 100 counts s<sup>−1</sup>. Fifty to seventy percent of the analyte ions were retained. Removal of polyatomic ions and retention of analyte ions were favored by low-energy collisions with Xe or CH<sub>4</sub> rather than typical target gases like N<sub>2</sub> or Ar. Products of ion-molecule reactions between background ions and target gas in the first quadrupole could be observed.
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