Abstract
High-temperature isotopic variations documented in natural materials span a narrow range and call for precise and accurate isotopic analyses. Precisions better than ~ 0.03‰ (95% confidence interval) for δ56Fe have been obtained by High-Resolution Multi-Collector Inductively Coupled Plasma Mass Spectrometry (HR-MC-ICPMS). Whether these uncertainties encompass all sources of error has not been carefully evaluated. The current study examines all parameters that can affect accuracy and precision of Fe isotopic measurements by HR-MC-ICPMS. It is demonstrated that accurate δ56Fe measurements can be routinely achieved within the quoted uncertainties.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 175-184 |
| Number of pages | 10 |
| Journal | Chemical Geology |
| Volume | 267 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - Sep 30 2009 |
| Externally published | Yes |
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Keywords
- Accuracy
- Chromatography
- HR-MC-ICPMS
- Iron isotopes
- Precision
ASJC Scopus subject areas
- Geochemistry and Petrology
- Geology
Cite this
Routine isotopic analysis of iron by HR-MC-ICPMS : How precise and how accurate? / Dauphas, Nicolas; Pourmand, Ali; Teng, Fang Zhen.
In: Chemical Geology, Vol. 267, No. 3-4, 30.09.2009, p. 175-184.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Routine isotopic analysis of iron by HR-MC-ICPMS
T2 - How precise and how accurate?
AU - Dauphas, Nicolas
AU - Pourmand, Ali
AU - Teng, Fang Zhen
PY - 2009/9/30
Y1 - 2009/9/30
N2 - High-temperature isotopic variations documented in natural materials span a narrow range and call for precise and accurate isotopic analyses. Precisions better than ~ 0.03‰ (95% confidence interval) for δ56Fe have been obtained by High-Resolution Multi-Collector Inductively Coupled Plasma Mass Spectrometry (HR-MC-ICPMS). Whether these uncertainties encompass all sources of error has not been carefully evaluated. The current study examines all parameters that can affect accuracy and precision of Fe isotopic measurements by HR-MC-ICPMS. It is demonstrated that accurate δ56Fe measurements can be routinely achieved within the quoted uncertainties.
AB - High-temperature isotopic variations documented in natural materials span a narrow range and call for precise and accurate isotopic analyses. Precisions better than ~ 0.03‰ (95% confidence interval) for δ56Fe have been obtained by High-Resolution Multi-Collector Inductively Coupled Plasma Mass Spectrometry (HR-MC-ICPMS). Whether these uncertainties encompass all sources of error has not been carefully evaluated. The current study examines all parameters that can affect accuracy and precision of Fe isotopic measurements by HR-MC-ICPMS. It is demonstrated that accurate δ56Fe measurements can be routinely achieved within the quoted uncertainties.
KW - Accuracy
KW - Chromatography
KW - HR-MC-ICPMS
KW - Iron isotopes
KW - Precision
UR - http://www.scopus.com/inward/record.url?scp=70349264318&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349264318&partnerID=8YFLogxK
U2 - 10.1016/j.chemgeo.2008.12.011
DO - 10.1016/j.chemgeo.2008.12.011
M3 - Article
AN - SCOPUS:70349264318
VL - 267
SP - 175
EP - 184
JO - Chemical Geology
JF - Chemical Geology
SN - 0009-2541
IS - 3-4
ER -