English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  A comparison of isotope ratio mass spectrometry and cavity ring-down spectroscopy techniques for isotope analysis of fluid inclusion water

De Graaf, S., Vonhof, H. B., Weissbach, T., Wassenburg, J. A., Levy, E. J., Kluge, T., et al. (2020). A comparison of isotope ratio mass spectrometry and cavity ring-down spectroscopy techniques for isotope analysis of fluid inclusion water. Rapid Communications in Mass Spectrometry, 34(16): e8837. doi:10.1002/rcm.8837.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
De Graaf, Stefan1, Author              
Vonhof, Hubert B.1, Author              
Weissbach , Therese2, Author
Wassenburg, Jasper A.1, Author              
Levy, Elan J.1, Author              
Kluge , Tobias2, Author
Haug, Gerald H.1, Author              
Affiliations:
1Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_2237635              
2external, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: Rationale Online oxygen (δ18O) and hydrogen (δ2H) isotope analysis of fluid inclusion water entrapped in minerals is widely applied in paleo‐fluid studies. In the state of the art of fluid inclusion isotope research, however, there is a scarcity of reported inter‐technique comparisons to account for possible analytical offsets. Along with improving analytical precisions and sample size limitations, interlaboratory comparisons can lead to a more robust application of fluid inclusion isotope records. Methods Mineral samples—including speleothem, travertine, and vein material—were analyzed on two newly setup systems for fluid inclusion isotope analysis to provide an inter‐platform comparison. One setup uses a crusher unit connected online to a continuous‐flow pyrolysis furnace and an isotope ratio mass spectrometry (IRMS) instrument. In the other setup, a crusher unit is lined up with a cavity ring‐down spectroscopy (CRDS) system, and water samples are analyzed on a continuous standard water background to achieve precisions on water injections better than 0.1‰ for δ18O values and 0.4‰ for δ2H values for amounts down to 0.2 μL. Results Fluid inclusion isotope analyses on the IRMS setup have an average 1σ reproducibility of 0.4‰ and 2.0‰ for δ18O and δ2H values, respectively. The CRDS setup has a better 1σ reproducibility (0.3‰ for δ18O values and 1.1‰ for δ2H values) and also a more rapid sample throughput (<30 min per sample). Fluid inclusion isotope analyses are reproducible at these uncertainties for water amounts down to 0.1 μL on both setups. Fluid inclusion isotope data show no systematic offsets between the setups. Conclusions The close match in fluid inclusion isotope results between the two setups demonstrates the high accuracy of the presented continuous‐flow techniques for fluid inclusion isotope analysis. Ideally, experiments such as the one presented in this study will lead to further interlaboratory comparison efforts and the selection of suitable reference materials for fluid inclusion isotopes studies.

Details

show
hide
Language(s): eng - English
 Dates: 2020-08-30
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000553433000002
DOI: 10.1002/rcm.8837
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Rapid Communications in Mass Spectrometry
  Other : Rapid Commun. Mass Spectrom.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: New York, NY : John Wiley & Sons
Pages: - Volume / Issue: 34 (16) Sequence Number: e8837 Start / End Page: - Identifier: ISSN: 0951-4198
CoNE: https://pure.mpg.de/cone/journals/resource/954925574961