Publication
Effects of methane addition to nebulizer gas on polyatomic interferents and ion sensitivity in inductively coupled plasma mass spectrometry
| dc.contributor.author | Santos, Rui Miguel P. | |
| dc.date.accessioned | 2014-02-16T15:16:45Z | |
| dc.date.available | 2014-02-16T15:16:45Z | |
| dc.date.issued | 2014 | |
| dc.description | First published online 09 Oct 2013 | por |
| dc.description.abstract | The addition of methane to nebulizer gas was assessed as a method for the reduction of polyatomic interferents in inductively coupled plasma mass spectrometry (ICP-MS). The effects of nebulizer gas flow rate, RF power and methane flow were studied for a range of analytes and polyatomic ions. The analyte sensitivity, especially for Be, Br and I, was enhanced by a factor of 7–12 with methane addition. Polyatomic ions, such as ArCl+, ArO+, ClO+ and ArArH+, were reduced between 61 and 92% when compared to those of an unmodified plasma. Such reduction allowed better quantification limits for V, As, Se, Br and I, as well as 90% BaO+ polyatomic reduction. Finally, the optimized conditions were evaluated in successful recovery tests for As, Se and V in different matrices with high chloride content. The Fe accuracy was evaluated in several reference materials. | por |
| dc.identifier.citation | Santos, Rui - Effects of methane addition to nebulizer gas on polyatomic interferents and ion sensitivity in inductively coupled plasma mass spectrometry. In: Journal of Analytical Atomic Spectrometry, Vol. 29, Issue 1 (2014), p. 152-161 | por |
| dc.identifier.uri | http://hdl.handle.net/10400.9/2197 | |
| dc.language.iso | eng | por |
| dc.relation.publisherversion | http://dx.doi.org/10.1039/C3JA50221J | por |
| dc.subject | Geoquímica aplicada | por |
| dc.subject | Espectrometria | por |
| dc.subject | Metano | por |
| dc.title | Effects of methane addition to nebulizer gas on polyatomic interferents and ion sensitivity in inductively coupled plasma mass spectrometry | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.title | Journal of Analytical Atomic Spectrometry | por |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |