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Major and Trace Element Analysis of Silicate Rocks by XRF and Laser Ablation ICP-MS Using Lithium Borate Fused Glasses: Matrix effects, Instrument Response and Results for International Reference Materials

Yu, Zongshou; Norman, Marc; Robinson, Philip

Description

Major and trace element compositions of fifteen silicate rock reference materials have been determined by a combined XRF and laser ablation ICP-MS (LA-ICP-MS) technique on glasses prepared by fusing the sample with a lithium borate flux (sample:flux = 1:3). Advantages of this technique include the ability to measure major and trace element abundances on a single sample using a quick and simple preparation that attacks resistant phases such as zircon without the need for acid dissolution. The...[Show more]

dc.contributor.authorYu, Zongshou
dc.contributor.authorNorman, Marc
dc.contributor.authorRobinson, Philip
dc.date.accessioned2015-12-13T23:07:30Z
dc.date.available2015-12-13T23:07:30Z
dc.identifier.issn0150-5505
dc.identifier.urihttp://hdl.handle.net/1885/86237
dc.description.abstractMajor and trace element compositions of fifteen silicate rock reference materials have been determined by a combined XRF and laser ablation ICP-MS (LA-ICP-MS) technique on glasses prepared by fusing the sample with a lithium borate flux (sample:flux = 1:3). Advantages of this technique include the ability to measure major and trace element abundances on a single sample using a quick and simple preparation that attacks resistant phases such as zircon without the need for acid dissolution. The method is suitable for a wide variety of bulk compositions including mafic, intermediate and silicic rocks. Abundance-normalized mass response patterns (the ratio of signal intensity to element concentration) of the LA-ICP-MS analyses vary systematically with major element composition, demonstrating the presence of a matrix effect that cannot be compensated by normalisation to a single internal standard element. Increasing the sampling distance between the ICP-MS cone and the torch reduces the magnitude of this effect, suggesting that a mechanism related to residence time of ablated particles in the plasma may be at least partially responsible for the observed variations in mass response patterns. When using a matrix-matched calibration, agreement of the LA-ICP-MS results with published reference values or those obtained by solution ICP-MS is ≤ 10% relative. Analytical precision based on replicate analyses is typically ≤ 5% RSD. Procedural detection limits that include contributions from gas background and flux are 0.01-0.1 μg g-1 for the heavy mass trace elements (Rb-U). Major element analyses by XRF show excellent agreement with results obtained using a conventional heavy element absorbing flux. High quality major and trace element data for silicate rocks can be achieved by a combined XRF and LA-ICP-MS analysis of Li2B4O7/LiBO2 fused glasses provided an appropriate matrix-matched calibration is adopted.
dc.publisherGeostandards
dc.sourceGeostandards Newsletter - The Journal of Geostandards and Geoanalysis
dc.subjectKeywords: Flux-fused glasses; Geological materials; Inductively coupled plasma-mass spectrometry; Laser sampling; Mass response; Matrix effects; Matrix matching; Trace element analysis; X-ray fluorescence
dc.titleMajor and Trace Element Analysis of Silicate Rocks by XRF and Laser Ablation ICP-MS Using Lithium Borate Fused Glasses: Matrix effects, Instrument Response and Results for International Reference Materials
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume27
dc.date.issued2003
local.identifier.absfor040299 - Geochemistry not elsewhere classified
local.identifier.ariespublicationMigratedxPub15045
local.type.statusPublished Version
local.contributor.affiliationYu, Zongshou, University of Tasmania
local.contributor.affiliationNorman, Marc, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationRobinson, Philip, University of Tasmania
local.bibliographicCitation.issue1
local.bibliographicCitation.startpage67
local.bibliographicCitation.lastpage89
local.identifier.doi10.1111/j.1751-908X.2003.tb00713.x
dc.date.updated2016-02-24T09:47:19Z
local.identifier.scopusID2-s2.0-84864349038
CollectionsANU Research Publications

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