Precise determination of mass-dependent variations in the isotopic composition of molybdenum using MC-ICPMS.
We present an analytical approach for the precise determination of mass-dependent differences in the isotopic composition of Mo between samples and reference standards using multiple-collector magnetic sector inductively coupled plasma mass spectrometry (MC-ICPMS). Either Zr or Ru "element spik...
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| Format: | Journal article |
| Language: | English |
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2001
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| _version_ | 1826268410756988928 |
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| author | Anbar, A Knab, K Barling, J |
| author_facet | Anbar, A Knab, K Barling, J |
| author_sort | Anbar, A |
| collection | OXFORD |
| description | We present an analytical approach for the precise determination of mass-dependent differences in the isotopic composition of Mo between samples and reference standards using multiple-collector magnetic sector inductively coupled plasma mass spectrometry (MC-ICPMS). Either Zr or Ru "element spikes" are employed to correct for instrumental mass bias. Differences in 95Mo/97Mo can be determined to a precision of +/-0.2%o (+2sigma) using 1-10 microg of Mo. Similar precision is possible for other ratios after correction for isobaric interferences from either spike element. This approach facilitates study of mass-dependent variations in the isotopic composition of Mo in nature and in materials produced by laboratory processes. We observe fractionation of Mo isotopes of approximately 1.5%o/amu during ion-exchange chromatography in the laboratory and a shift of approximately 0.3%o/amu between natural MoS2 and a laboratory standard. |
| first_indexed | 2024-03-06T21:09:16Z |
| format | Journal article |
| id | oxford-uuid:3d94c133-615c-47a8-8fb9-e2f7ff10fc81 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:09:16Z |
| publishDate | 2001 |
| record_format | dspace |
| spelling | oxford-uuid:3d94c133-615c-47a8-8fb9-e2f7ff10fc812022-03-26T14:20:12ZPrecise determination of mass-dependent variations in the isotopic composition of molybdenum using MC-ICPMS.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3d94c133-615c-47a8-8fb9-e2f7ff10fc81EnglishSymplectic Elements at Oxford2001Anbar, AKnab, KBarling, JWe present an analytical approach for the precise determination of mass-dependent differences in the isotopic composition of Mo between samples and reference standards using multiple-collector magnetic sector inductively coupled plasma mass spectrometry (MC-ICPMS). Either Zr or Ru "element spikes" are employed to correct for instrumental mass bias. Differences in 95Mo/97Mo can be determined to a precision of +/-0.2%o (+2sigma) using 1-10 microg of Mo. Similar precision is possible for other ratios after correction for isobaric interferences from either spike element. This approach facilitates study of mass-dependent variations in the isotopic composition of Mo in nature and in materials produced by laboratory processes. We observe fractionation of Mo isotopes of approximately 1.5%o/amu during ion-exchange chromatography in the laboratory and a shift of approximately 0.3%o/amu between natural MoS2 and a laboratory standard. |
| spellingShingle | Anbar, A Knab, K Barling, J Precise determination of mass-dependent variations in the isotopic composition of molybdenum using MC-ICPMS. |
| title | Precise determination of mass-dependent variations in the isotopic composition of molybdenum using MC-ICPMS. |
| title_full | Precise determination of mass-dependent variations in the isotopic composition of molybdenum using MC-ICPMS. |
| title_fullStr | Precise determination of mass-dependent variations in the isotopic composition of molybdenum using MC-ICPMS. |
| title_full_unstemmed | Precise determination of mass-dependent variations in the isotopic composition of molybdenum using MC-ICPMS. |
| title_short | Precise determination of mass-dependent variations in the isotopic composition of molybdenum using MC-ICPMS. |
| title_sort | precise determination of mass dependent variations in the isotopic composition of molybdenum using mc icpms |
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