title: Sensitivity improvement in ICP MS analysis of fuels and light petroleum matrices using a microflow nebulizer and heated spray chamber sample introduction.
abstract: Reasons for signal suppression during the analysis of light petroleum matrices by inductively coupled plasma mass spectrometry (ICP MS) were examined. A decrease of the ionization efficiency of the plasma was found to be the principal factor responsible for this loss of sensitivity. Consequently, an interface based on a total consumption micronebulizer and a heated spray chamber was constructed to alleviate this problem. A method based on flow-injection ICP MS using this interface was developed for the direct multielement analysis of undiluted fuels (gasoline, kerosene) and gas condensates offering an increase in sensitivity by at least a factor of 3-4 in comparison with the existing setups.
authors.affiliation: CNRS-UPPA, UMR 5254, LCABIE, Hélioparc, Pau, France.
authors.forename: Guilhem
authors.initials: G
authors.lastname: Caumette
authors.forename: Charles-Philippe
authors.initials: CP
authors.lastname: Lienemann
authors.forename: Isabelle
authors.initials: I
authors.lastname: Merdrignac
authors.forename: Hugues
authors.initials: H
authors.lastname: Paucot
authors.forename: Brice
authors.initials: B
authors.lastname: Bouyssiere
authors.forename: Ryszard
authors.initials: R
authors.lastname: Lobinski
mesh_terms: D005742:Gasoline / Q000032:analysis*; D007648:Kerosene / Q000032:analysis*; D013058:Mass Spectrometry / Q000295:instrumentation / Q000379:methods*; D008670:Metals / Q000032:analysis; D008982:Molybdenum / Q000737:chemistry; D009330:Nebulizers and Vaporizers; D010578:Petroleum / Q000032:analysis*; D015203:Reproducibility of Results; D013696:Temperature
chemical_list: D005742:Gasoline; D007648:Kerosene; D008670:Metals; D010578:Petroleum; D008982:Molybdenum