Silicon isotope measurement in zircon by laser ablation multiple collector inductively coupled plasma mass spectrometry. Issue 8 (24th June 2020)

• Record Type: Journal Article
• Authors: Guitreau, Martin; Gannoun, Abdelmouhcine; Deng, Zhengbin; Marin-Carbonne, Johanna; Chaussidon, Marc; Moynier, Frédéric
• Is Part Of: Journal of analytical atomic spectrometry. Volume 35:Issue 8(2020)
• Page Start: 1597
• Page End: 1606
• Publication Date: 2020-06-24
• Subjects: Atomic spectra -- Periodicals; Atomic absorption spectroscopy -- Periodicals; 543.0858
• DOI: 10.1039/d0ja00214c
• Languages: English
• ISSNs: 0267-9477

Abstract

Abstract : This study reports the first Si isotope data measured in zircon using nanosecond laser ablation multiple collector inductively coupled plasma mass spectrometry. Abstract : This study reports the first Si isotope data measured in zircon using nanosecond laser ablation multiple collector inductively coupled plasma mass spectrometry. Long-term (>2 years) external reproducibility obtained on the 91500 zircon standard is 0.13‰ and 0.21‰ (2SD) for δ 29 Si and δ 30 Si (per mil deviation from the quartz reference NBS 28), respectively, and typical precision on a single run is on the order of 0.10‰ and 0.12‰ (2SE) for δ 29 Si and δ 30 Si, respectively. Our results show good consistency between laser ablation multiple collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) and solution multiple collector inductively coupled plasma mass spectrometry (S-MC-ICP-MS)/secondary ionization mass spectrometry (SIMS) data demonstrating that the Si isotopic composition of zircon can be accurately measured by LA-MC-ICP-MS. Obtained δ 30 Si values on natural zircon standards range from −0.32 ± 0.23‰ (2SD) for 91500 to −0.47 ± 0.17‰ for MudTank, whereas the MUN (synthetic) zircon standards have lower δ 30 Si values around −2.0‰ ( e.g. −2.08 ± 0.17‰ for MUN-1-2b). Silicon isotope measurements by LA-MC-ICP-MS open new possibilities for studying zircon formation in various geological contexts.