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Tandem ICP-mass spectrometry for Sr isotopic analysis without prior Rb/Sr separation

Eduardo Bolea Fernandez UGent, Lieve Balcaen UGent, Martín Resano and Frank Vanhaecke UGent (2016) JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. 31(1). p.303-310
abstract
The use of a mixture of 10% of CH3F and 90% of He as a reaction gas in tandem ICP-mass spectrometry (ICP-MS/MS) enables the accurate determination of the Sr-87/Sr-86 isotope ratio in geological materials, provided that mass discrimination is corrected for by using a combination of internal (Russell law, assuming a constant Sr-88/Sr-86 isotope ratio) and external correction (using the isotopic reference material NIST SRM 987 SrCO3) in a sample-standard bracketing approach. No prior Rb/Sr separation is required as the isobaric overlap at a mass-to-charge ratio of 87 is avoided by monitoring SrF+ reaction product ions instead of Sr+ ions. Rb shows no reactivity towards CH3F. The double mass selection (MS/MS mode) prevents both spectral overlap from atomic ions at the mass-to-charge ratios of SrF+ reaction product ions and a measurable effect from the matrix on the Sr-87/Sr-86 result. This aspect is critical, as it enables accurate results to be obtained without the need for using a matrix-matched standard to correct for mass discrimination, in contrast to previous work with a quadrupole ICP-MS instrument with a CH3F/Ne-pressurized cell, in which the use of a matrix-matched standard was compulsory. The precision attainable -0.05% RSD external precision - suffices for making the newly developed method useful in a variety of applications.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
METHYL-FLUORIDE, RATIO MEASUREMENTS, ENVIRONMENTAL-SAMPLES, REACTION GAS, MS, INTERFERENCE, RESOLUTION, BIAS, LONG-LIVED RADIONUCLIDES, DYNAMIC REACTION CELL
journal title
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
J. Anal. At. Spectrom.
volume
31
issue
1
pages
303 - 310
Web of Science type
Article
Web of Science id
000367315200027
JCR category
SPECTROSCOPY
JCR impact factor
3.379 (2016)
JCR rank
6/41 (2016)
JCR quartile
1 (2016)
ISSN
0267-9477
DOI
10.1039/c5ja00157a
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
7171374
handle
http://hdl.handle.net/1854/LU-7171374
date created
2016-03-31 15:29:03
date last changed
2016-12-19 15:45:38
@article{7171374,
  abstract     = {The use of a mixture of 10\% of CH3F and 90\% of He as a reaction gas in tandem ICP-mass spectrometry (ICP-MS/MS) enables the accurate determination of the Sr-87/Sr-86 isotope ratio in geological materials, provided that mass discrimination is corrected for by using a combination of internal (Russell law, assuming a constant Sr-88/Sr-86 isotope ratio) and external correction (using the isotopic reference material NIST SRM 987 SrCO3) in a sample-standard bracketing approach. No prior Rb/Sr separation is required as the isobaric overlap at a mass-to-charge ratio of 87 is avoided by monitoring SrF+ reaction product ions instead of Sr+ ions. Rb shows no reactivity towards CH3F. The double mass selection (MS/MS mode) prevents both spectral overlap from atomic ions at the mass-to-charge ratios of SrF+ reaction product ions and a measurable effect from the matrix on the Sr-87/Sr-86 result. This aspect is critical, as it enables accurate results to be obtained without the need for using a matrix-matched standard to correct for mass discrimination, in contrast to previous work with a quadrupole ICP-MS instrument with a CH3F/Ne-pressurized cell, in which the use of a matrix-matched standard was compulsory. The precision attainable -0.05\% RSD external precision - suffices for making the newly developed method useful in a variety of applications.},
  author       = {Bolea Fernandez, Eduardo and Balcaen, Lieve and Resano, Mart{\'i}n and Vanhaecke, Frank},
  issn         = {0267-9477},
  journal      = {JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY},
  keyword      = {METHYL-FLUORIDE,RATIO MEASUREMENTS,ENVIRONMENTAL-SAMPLES,REACTION GAS,MS,INTERFERENCE,RESOLUTION,BIAS,LONG-LIVED RADIONUCLIDES,DYNAMIC REACTION CELL},
  language     = {eng},
  number       = {1},
  pages        = {303--310},
  title        = {Tandem ICP-mass spectrometry for Sr isotopic analysis without prior Rb/Sr separation},
  url          = {http://dx.doi.org/10.1039/c5ja00157a},
  volume       = {31},
  year         = {2016},
}

Chicago
Bolea Fernandez, Eduardo, Lieve Balcaen, Martín Resano, and Frank Vanhaecke. 2016. “Tandem ICP-mass Spectrometry for Sr Isotopic Analysis Without Prior Rb/Sr Separation.” Journal of Analytical Atomic Spectrometry 31 (1): 303–310.
APA
Bolea Fernandez, E., Balcaen, L., Resano, M., & Vanhaecke, F. (2016). Tandem ICP-mass spectrometry for Sr isotopic analysis without prior Rb/Sr separation. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 31(1), 303–310.
Vancouver
1.
Bolea Fernandez E, Balcaen L, Resano M, Vanhaecke F. Tandem ICP-mass spectrometry for Sr isotopic analysis without prior Rb/Sr separation. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. 2016;31(1):303–10.
MLA
Bolea Fernandez, Eduardo, Lieve Balcaen, Martín Resano, et al. “Tandem ICP-mass Spectrometry for Sr Isotopic Analysis Without Prior Rb/Sr Separation.” JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 31.1 (2016): 303–310. Print.