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The application of laser-ablation microprobe; inductively coupled plasma-mass spectrometry (LAM-ICP-MS) to in situ trace-element determinations in minerals

Simon E. Jackson, Henry P. Longerich, Greg R. Dunning and Brian J. Freyer
The application of laser-ablation microprobe; inductively coupled plasma-mass spectrometry (LAM-ICP-MS) to in situ trace-element determinations in minerals
The Canadian Mineralogist (December 1992) 30, Part 4: 1049-1064

Abstract

A laser ablation microprobe (LAM) sample-introduction system designed for in situ microsampling of minerals in petrographic sections has been interfaced with an ICP-MS system. The response of rock-forming minerals to ablation is related to their absorptivity of the 1064 nm wavelength of the Nd:YAG laser beam (a function of the transition elements, especially Fe), and their physical properties, particularly cleavage and tenacity. Minerals with high absorptivity can generally be ablated controllably, but in those with low absorptivity catastrophic ablation may occur at the mineral/glass interface; however, with the exception of such well cleaved minerals as fluorite and calcite, most minerals can be ablated controllably in unsupported polished wafers, grain mounts and polished blocks, where ablation pits with diameters of 20-40 mu m can be achieved routinely. Results for titanite, zircon, apatite, uraninite and garnet separates are reported; routine limits of detection are approximately 0.5 ppm.


ISSN: 0008-4476
EISSN: 1499-1276
Coden: CAMIA6
Serial Title: The Canadian Mineralogist
Serial Volume: 30, Part 4
Title: The application of laser-ablation microprobe; inductively coupled plasma-mass spectrometry (LAM-ICP-MS) to in situ trace-element determinations in minerals
Affiliation: Memorial University of Newfoundland, Department of Earth Sciences and Centre for Earth Resources Research, St. John's, NL, Canada
Pages: 1049-1064
Published: 199212
Text Language: English
Summary Language: French
Publisher: Mineralogical Association of Canada, Ottawa, ON, Canada
References: 21
Accession Number: 1994-010749
Categories: General mineralogy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: 8 tables
Country of Publication: Canada
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 199405
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