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Type: Journal article
Title: A LA-ICP-MS sulphide calibration standard based on a chalcogenide glass
Author: Ding, L.
Yang, G.
Xia, F.
Lenehan, C.
Qian, G.
McFadden, A.
Brugger, J.
Zhang, X.
Chen, G.
Pring, A.
Citation: Mineralogical Magazine, 2011; 75(2):279-287
Publisher: Mineralogical Society
Issue Date: 2011
ISSN: 0026-461X
Statement of
Lihua Ding, Guang Yang, Fang Xia, Claire E. Lenehan, Gujie Qian, Aoife McFadden, Joël Brugger, Xianghua Zhang, Guorong Chen, Allan Pring
Abstract: The accurate measurement of trace element concentrations in natural sulphides by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has been limited by the lack of matrix-matched calibration standards. The synthesis of a standard, IMER-1, by incorporating four minor and 34 trace elements into a chalcogenide glass matrix Ge28Sb12S60 is reported here. Chemical analysis by electron probe microanalysis (EPMA), LA-ICP-MS, solution ICP-MS, and inductively coupled plasma-optical emission spectroscopy (ICP-OES) confirmed the excellent homogeneity of major elements (1-σ relative standard deviation (RSD) <1% for S, Sb and Ge) and acceptable homogeneity of most trace elements (1-σ RSD <10%). The standard was validated by analysing trace-elements concentrations in three geological pyrite specimens using IMER-1 as the calibration standard and comparing the results to previously reported values also determined by LA-ICP-MS but using a different calibration standard, STDGL2b-2. The results suggest that IMER-1 may be an appropriate calibration standard for LA-ICP-MS analysis of trace elements in natural sulphides.
Keywords: Ge-Sb-S chalcogenide glasses; LA-ICP-MS; sulphide calibration standard; trace element analysis
Rights: © 2011 The Mineralogical Society
DOI: 10.1180/minmag.2011.075.2.279
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