Journal
JOURNAL OF GEOCHEMICAL EXPLORATION
Volume 72, Issue 2, Pages 81-89Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0375-6742(00)00166-7
Keywords
laser ablation; high resolution ICP-MS; mineral analysis; sphalerite; trace elements
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The analytical performance of laser ablation (LA) for the determination of Co, Fe, Cd, Ag, Mn, Cu and S in sphalerite was evaluated using double focusing sector field inductively coupled plasma mass spectrometry (ICP-SFMS). Samples were collected from Zinkgruvan, situated in the south central Sweden. The use of Zn for internal standardisation, together with correction for FeS impurities in sphalerite, allows straightforward quantification without using external methods for the determination of the actual Zn content. LA-ICP-SFMS results were compared with data obtained by conventional pneumatic nebulisation introduction of sample solutions following acid digestion. Good agreement between the two methods was obtained for homogeneously distributed elements. For the majority of the elements under consideration, LA-ICP-SFMS precision was better than 10% RSD. (C) 2001 Elsevier Science B.V. All rights reserved.
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