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Application of High Spatial Resolution Laser Ablation ICP‐MS to Crystal‐Melt Trace Element Partition Coefficient Determination
Author(s) -
Petrelli Maurizio,
Caricchi Luca,
Ulmer Peter
Publication year - 2007
Publication title -
geostandards and geoanalytical research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.037
H-Index - 73
eISSN - 1751-908X
pISSN - 1639-4488
DOI - 10.1111/j.1751-908x.2007.00825.x
Subject(s) - electron microprobe , analytical chemistry (journal) , trace element , laser ablation , microprobe , chemistry , inductively coupled plasma mass spectrometry , laser , mass spectrometry , partition coefficient , mineralogy , microanalysis , optics , chromatography , physics , organic chemistry
In this contribution we evaluate the capabilities of laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS) using a 12 μm spot size. Precision, accuracy and detection limits were assessed on the USGS BCR‐2G reference material. We demonstrate that the 12 μm LA‐ICP‐MS analyses of experimentally‐grown amphibole and garnet are in excellent agreement with secondary ion mass spectrometry (SIMS) trace element determinations on the same crystals. The 12 μm spot size configuration was subsequently used to determine trace element crystal‐melt partition coefficients (D c/m ) for a wide range of trace elements in amphibole in equilibrium with a basanitic melt. The following strategy to determine accurately and evaluate D c/m is proposed. One or more major elements determined previously by electron probe microanalysis (EPMA) was used to ensure consistency between EPMA and the composition of the aerosol produced by the laser ablation. Measured D c/m values were successively evaluated using the lattice strain model. The use of this strategy significantly improved the precision and accuracy of D c/m determination when a LA‐ICP‐MS configuration with a high spatial resolution was employed.