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|Title:||A LA-ICP-MS sulphide calibration standard based on a chalcogenide glass|
|Citation:||Mineralogical Magazine, 2011; 75(2):279-287|
|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|
|Appears in Collections:||Aurora harvest 7|
Earth and Environmental Sciences publications
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