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1 Determination of radiogenic and stable strontium isotope ratios ( 87 Sr / 86 Sr ; δ 88 / 86 Sr ) by thermal ionization mass spectrometry applying an 87 Sr / 84 Sr double spike
| Content Provider | Semantic Scholar |
|---|---|
| Author | Krabbenhöft, André Fietzke, Jan Eisenhauer, Anton Liebetrau, Volker Böhm, Florian Hauke Vollstaedt |
| Copyright Year | 2010 |
| Abstract | Recent findings of natural strontium isotope fractionation have opened a new field of research in non-traditional stable isotope geochemistry. While previous studies were based on data obtained by MC-ICP-MS we here present a novel approach combining thermal ionization mass spectrometry (TIMS) with the use of an Sr/Sr double spike (DS). Our results for the IAPSO sea water and JCp-1 coral standards, respectively, are in accord with previously published data. Strontium isotope composition of IAPSO sea water standard was determined as δSr = 0.386(5) ‰ (δ values relative to the SRM987), Sr/Sr* = 0.709312(9) n=10 and a corresponding conventionally normalized Sr/Sr = 0.709168(7) (all uncertainties 2SEM). For JCp-1 coral standard we obtained δSr = 0.197(8) ‰, Sr/Sr*=0.709237(2) and Sr/Sr = 0.709164(5) n=3. We show that applying this DS-TIMS method the precision is improved by at least a factor of 2-3 when compared to MC-ICP-MS. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.geomar.de/fileadmin/content/forschen/fb2/mg/proj/trion/Krabbenhoeft_et_al_2009_final_version.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
