Optimization of 186 Os/ 188 Os analyses by N-TIMS using amplifiers equipped with 10 13 Ohm resistors
Analysis of 186 Os/ 188 Os variations in most natural samples is hampered by their low Os concentrations (usually
Gespeichert in:
| Veröffentlicht in: | Geostandards and geoanalytical research 2021-06, Vol.45 (2), p.287-311 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 311 |
|---|---|
| container_issue | 2 |
| container_start_page | 287 |
| container_title | Geostandards and geoanalytical research |
| container_volume | 45 |
| creator | Reisberg, Laurie Zimmermann, Catherine |
| description | Analysis of 186 Os/ 188 Os variations in most natural samples is hampered by their low Os concentrations (usually |
| doi_str_mv | 10.1111/ggr.12371 |
| format | Article |
| fullrecord | <record><control><sourceid>hal</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_03325882v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>oai_HAL_hal_03325882v1</sourcerecordid><originalsourceid>FETCH-hal_primary_oai_HAL_hal_03325882v13</originalsourceid><addsrcrecordid>eNqVys1OwkAUBeAJ0UREF77B3boozO20MF0So8EE6AIW7JoxTNtL-jPMLZD69NbEF_BsvpOTI8QLyikOmRWFn2KoFjgSY1zEGCRSH-6GPldJEEVaP4hH5pOUcZTEOBbH1HVU07fpqG2gzQH1HFKeDepBMI2perYMXz1sg_3nZgcXpqYAU7uKcrKewZ4v5Jw9wo26ElACKkjLGrxl4q71_CTuc1Oxff5zIl4_3vdvq6A0VeY81cb3WWsoWy3X2e8mlQpjrcMrqv98fwDfs0yO</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Optimization of 186 Os/ 188 Os analyses by N-TIMS using amplifiers equipped with 10 13 Ohm resistors</title><source>Access via Wiley Online Library</source><creator>Reisberg, Laurie ; Zimmermann, Catherine</creator><creatorcontrib>Reisberg, Laurie ; Zimmermann, Catherine</creatorcontrib><description>Analysis of 186 Os/ 188 Os variations in most natural samples is hampered by their low Os concentrations (usually <100 pg/g), requiring Os separation from up to a kilogram of powder to obtain high precision results. Recently developed amplifiers equipped with 10 13 Ohm feedback resistors improve the signal to noise ratio by an order of magnitude, allowing acquisition of high precision data (2SE <50 ppm) from 186 OsO 3 ion beams of ~40 fA, and thus analysis of less material (~10 to 500g). Factors controling the accuracy and precision of 186 Os/ 188 Os NTIMS analyses, using a mixed array of 10 13 and 10 11 Ohm amplifiers, include isobaric interferences, baseline variability, gain calibration, decay time corrections and oxygen isotope composition variations. Isobaric interferences present the greatest challenges, but these can be largely overcome by using double Pt filaments and periodically monitoring interferences during each analysis. The optimized procedures produce 186 Os/ 188 Os ratios with precisions close to the theoretical limits imposed by counting statistics and Johnson-Nyquist electronic noise for ion beams of 10 to 70 fA. The long term reproducibility (85 ppm; 2σ) approaches theoretically expected values (~50 to 80 ppm). This reproducibility is sufficient to allow 186 Os/ 188 Os analyses of crustal rocks, for which relatively large variations are expected.</description><identifier>ISSN: 1639-4488</identifier><identifier>EISSN: 1751-908X</identifier><identifier>DOI: 10.1111/ggr.12371</identifier><language>eng</language><publisher>Wiley</publisher><subject>Analytical chemistry ; Chemical Sciences ; Earth Sciences ; Geochemistry ; Sciences of the Universe</subject><ispartof>Geostandards and geoanalytical research, 2021-06, Vol.45 (2), p.287-311</ispartof><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://hal.univ-lorraine.fr/hal-03325882$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Reisberg, Laurie</creatorcontrib><creatorcontrib>Zimmermann, Catherine</creatorcontrib><title>Optimization of 186 Os/ 188 Os analyses by N-TIMS using amplifiers equipped with 10 13 Ohm resistors</title><title>Geostandards and geoanalytical research</title><description>Analysis of 186 Os/ 188 Os variations in most natural samples is hampered by their low Os concentrations (usually <100 pg/g), requiring Os separation from up to a kilogram of powder to obtain high precision results. Recently developed amplifiers equipped with 10 13 Ohm feedback resistors improve the signal to noise ratio by an order of magnitude, allowing acquisition of high precision data (2SE <50 ppm) from 186 OsO 3 ion beams of ~40 fA, and thus analysis of less material (~10 to 500g). Factors controling the accuracy and precision of 186 Os/ 188 Os NTIMS analyses, using a mixed array of 10 13 and 10 11 Ohm amplifiers, include isobaric interferences, baseline variability, gain calibration, decay time corrections and oxygen isotope composition variations. Isobaric interferences present the greatest challenges, but these can be largely overcome by using double Pt filaments and periodically monitoring interferences during each analysis. The optimized procedures produce 186 Os/ 188 Os ratios with precisions close to the theoretical limits imposed by counting statistics and Johnson-Nyquist electronic noise for ion beams of 10 to 70 fA. The long term reproducibility (85 ppm; 2σ) approaches theoretically expected values (~50 to 80 ppm). This reproducibility is sufficient to allow 186 Os/ 188 Os analyses of crustal rocks, for which relatively large variations are expected.</description><subject>Analytical chemistry</subject><subject>Chemical Sciences</subject><subject>Earth Sciences</subject><subject>Geochemistry</subject><subject>Sciences of the Universe</subject><issn>1639-4488</issn><issn>1751-908X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqVys1OwkAUBeAJ0UREF77B3boozO20MF0So8EE6AIW7JoxTNtL-jPMLZD69NbEF_BsvpOTI8QLyikOmRWFn2KoFjgSY1zEGCRSH-6GPldJEEVaP4hH5pOUcZTEOBbH1HVU07fpqG2gzQH1HFKeDepBMI2perYMXz1sg_3nZgcXpqYAU7uKcrKewZ4v5Jw9wo26ElACKkjLGrxl4q71_CTuc1Oxff5zIl4_3vdvq6A0VeY81cb3WWsoWy3X2e8mlQpjrcMrqv98fwDfs0yO</recordid><startdate>202106</startdate><enddate>202106</enddate><creator>Reisberg, Laurie</creator><creator>Zimmermann, Catherine</creator><general>Wiley</general><scope>1XC</scope><scope>VOOES</scope></search><sort><creationdate>202106</creationdate><title>Optimization of 186 Os/ 188 Os analyses by N-TIMS using amplifiers equipped with 10 13 Ohm resistors</title><author>Reisberg, Laurie ; Zimmermann, Catherine</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-hal_primary_oai_HAL_hal_03325882v13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Analytical chemistry</topic><topic>Chemical Sciences</topic><topic>Earth Sciences</topic><topic>Geochemistry</topic><topic>Sciences of the Universe</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Reisberg, Laurie</creatorcontrib><creatorcontrib>Zimmermann, Catherine</creatorcontrib><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Geostandards and geoanalytical research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Reisberg, Laurie</au><au>Zimmermann, Catherine</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimization of 186 Os/ 188 Os analyses by N-TIMS using amplifiers equipped with 10 13 Ohm resistors</atitle><jtitle>Geostandards and geoanalytical research</jtitle><date>2021-06</date><risdate>2021</risdate><volume>45</volume><issue>2</issue><spage>287</spage><epage>311</epage><pages>287-311</pages><issn>1639-4488</issn><eissn>1751-908X</eissn><abstract>Analysis of 186 Os/ 188 Os variations in most natural samples is hampered by their low Os concentrations (usually <100 pg/g), requiring Os separation from up to a kilogram of powder to obtain high precision results. Recently developed amplifiers equipped with 10 13 Ohm feedback resistors improve the signal to noise ratio by an order of magnitude, allowing acquisition of high precision data (2SE <50 ppm) from 186 OsO 3 ion beams of ~40 fA, and thus analysis of less material (~10 to 500g). Factors controling the accuracy and precision of 186 Os/ 188 Os NTIMS analyses, using a mixed array of 10 13 and 10 11 Ohm amplifiers, include isobaric interferences, baseline variability, gain calibration, decay time corrections and oxygen isotope composition variations. Isobaric interferences present the greatest challenges, but these can be largely overcome by using double Pt filaments and periodically monitoring interferences during each analysis. The optimized procedures produce 186 Os/ 188 Os ratios with precisions close to the theoretical limits imposed by counting statistics and Johnson-Nyquist electronic noise for ion beams of 10 to 70 fA. The long term reproducibility (85 ppm; 2σ) approaches theoretically expected values (~50 to 80 ppm). This reproducibility is sufficient to allow 186 Os/ 188 Os analyses of crustal rocks, for which relatively large variations are expected.</abstract><pub>Wiley</pub><doi>10.1111/ggr.12371</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1639-4488 |
| ispartof | Geostandards and geoanalytical research, 2021-06, Vol.45 (2), p.287-311 |
| issn | 1639-4488 1751-908X |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_03325882v1 |
| source | Access via Wiley Online Library |
| subjects | Analytical chemistry Chemical Sciences Earth Sciences Geochemistry Sciences of the Universe |
| title | Optimization of 186 Os/ 188 Os analyses by N-TIMS using amplifiers equipped with 10 13 Ohm resistors |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-02T05%3A28%3A49IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-hal&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Optimization%20of%20186%20Os/%20188%20Os%20analyses%20by%20N-TIMS%20using%20amplifiers%20equipped%20with%2010%2013%20Ohm%20resistors&rft.jtitle=Geostandards%20and%20geoanalytical%20research&rft.au=Reisberg,%20Laurie&rft.date=2021-06&rft.volume=45&rft.issue=2&rft.spage=287&rft.epage=311&rft.pages=287-311&rft.issn=1639-4488&rft.eissn=1751-908X&rft_id=info:doi/10.1111/ggr.12371&rft_dat=%3Chal%3Eoai_HAL_hal_03325882v1%3C/hal%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |