Matrix effects during laser ablation MC ICP-MS analysis of boron isotopes in tourmaline

Matrix effects during laser ablation MC ICP-MS analysis of boron isotopes in tourmaline Laser ablation multi-collector inductively coupled plasma mass spectrometry (LA MC ICP-MS) and secondary ion mass spectrometry (SIMS) were used to determine the boron isotopic compositions of several natural tourmaline group minerals (elbaite, schorl and dravite). This study reports on the effects of instrument parameters of LA MC ICP-MS and the composition of sample matrix on data accuracy, reproducibility and repeatability. We demonstrate that the tourmaline matrix has a significant effect on the obtained δ 11 B values and impacts on data accuracy, with a bias of up to ca. 2.5‰ if a non matrix-matched reference material is used to calibrate the measurements. In the case of a matrix-matched calibration, the boron isotopic data obtained by LA MC ICP-MS are comparable to the reference TIMS values, with typical repeatability for δ 11 B results between 0.2 and 0.5‰ (1 s ). This is somewhat better compared to the repeatability of 0.8–1.3‰ (1 s ) for small format single collector SIMS. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Analytical Atomic Spectrometry Royal Society of Chemistry

Matrix effects during laser ablation MC ICP-MS analysis of boron isotopes in tourmaline

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Publisher
The Royal Society of Chemistry
Copyright
This journal is © the Partner Organisations 2014
ISSN
0267-9477
eISSN
1364-5544
D.O.I.
10.1039/c3ja50241d
Publisher site
See Article on Publisher Site

Abstract

Laser ablation multi-collector inductively coupled plasma mass spectrometry (LA MC ICP-MS) and secondary ion mass spectrometry (SIMS) were used to determine the boron isotopic compositions of several natural tourmaline group minerals (elbaite, schorl and dravite). This study reports on the effects of instrument parameters of LA MC ICP-MS and the composition of sample matrix on data accuracy, reproducibility and repeatability. We demonstrate that the tourmaline matrix has a significant effect on the obtained δ 11 B values and impacts on data accuracy, with a bias of up to ca. 2.5‰ if a non matrix-matched reference material is used to calibrate the measurements. In the case of a matrix-matched calibration, the boron isotopic data obtained by LA MC ICP-MS are comparable to the reference TIMS values, with typical repeatability for δ 11 B results between 0.2 and 0.5‰ (1 s ). This is somewhat better compared to the repeatability of 0.8–1.3‰ (1 s ) for small format single collector SIMS.

Journal

Journal of Analytical Atomic SpectrometryRoyal Society of Chemistry

Published: Feb 13, 2014

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