Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4611
AuthorsD’Oriano, C.* 
Da Pelo, S.* 
Podda, F.* 
Cioni, R.* 
TitleLaser-Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS): setting operating conditions and instrumental performance
Issue Date2008
Series/Report no.3/77(2008)
DOI10.2451/2008PM0019
URIhttp://hdl.handle.net/2122/4611
Keywordslaser ablation ICP-MS
trace elements
USGS glass reference materials
operating conditions
precision and accuracy
LLD
Subject Classification04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques 
AbstractThe concentration of thirty nine geochemically relevant trace elements, from 7Li to 238U, was determined in standard silicate glasses (NIST610, NIST612, BCR-2) using the Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) instrumentation at the Department of Earth Sciences of the University of Cagliari (Italy). The device is a Quadrupole ICP-MS (Perkin Elmer Elan DRC-e) coupled with a 213 nm Nd:YAG laser probe (New Wave Research). This configuration allows rapid, high quality, in-situ trace elements analysis in glasses and minerals. The calibration strategy, achieved using synthetic multi-element glasses (NIST612), with 44Ca as internal standard, gives an analytical accuracy within 5% error level, providing a precision between 1% and 9%, at 40 µm of crater size for all elements. At a laser spot size of 40 m, the lower limit of detection (LLD) ranges between 0.001 and 1 ppm for all the elements; it increases by about one order of magnitude, without any significant fractionation among the different elements, for a laser spot size of 15 µm. Quality control of LA-ICP-MS analyses is routinely performed analysing a natural standard glass, the BCR-2, certified by the USGS, considered as unknown sample. Results indicate that the instrumentation capabilities are suitable for the geochemical characterisation of various materials of mineralogical, petrological, geological and environmental interest.
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