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claudia-bouman
Team TFS
Team TFS
1) Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands, 2) Faculty of Earth and Life Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands, 3) Thermo Electron Corporation, Hanna-Kunath-Str. 11, D-28199 Bremen, Germany
Journal of Analytical Atomic Spectrometry (2006), V21, pp734–742, doi: 10.1039/b600933f
Determination of silicon isotope ratios in silicate materials by high-resolution MC-ICP-MS using a sodium hydroxide sample digestion method
Sander H. J. M. van den Boorn (1), Pieter Z. Vroon (2), Coos C. van Belle (2), Bas van der Wagt (2), Johannes Schwieters (3) and Manfred J. van Bergen (1)
Silicon isotope ratios (28Si, 29Si and 30Si) can be measured with high precision by multi-collector inductively coupled plasma mass spectrometers (MC-ICP-MS). However, the problematic extraction of silicon from geological materials has been a major disadvantage in previous silicon isotope studies with conventional gas source mass spectrometry, whereas available silicon isotope results obtained by MC-ICP-MS techniques have been mainly restricted to waters and high purity silica. Silicon isotope measurements, performed with a Finnigan Neptune MC-ICP-MS used in medium-resolution mode (resolving power: 2500), indicate that polyatomic interferences can be resolved and that both δ29Si and δ30Si can be determined with high accuracy and precision on interference-free peak plateaux in the mass spectrum.
  • MC-ICPMS
  • Neptune
  • Si isotopes
  • High resolution
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