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- Publisher Website: 10.1039/b303225f
- Scopus: eid_2-s2.0-0344530504
- WOS: WOS:000186367900002
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Article: Precise isotope ratio determination of common Pb using quadrupole LA-ICP-MS with optimized laser sampling conditions and a robust mixed-gas plasma
Title | Precise isotope ratio determination of common Pb using quadrupole LA-ICP-MS with optimized laser sampling conditions and a robust mixed-gas plasma |
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Authors | |
Issue Date | 2003 |
Citation | Journal of Analytical Atomic Spectrometry, 2003, v. 18, n. 11, p. 1331-1338 How to Cite? |
Abstract | This work presents a method for the precise (0.2% RSE) determination of common (i.e. non-radiogenic) Pb isotope ratios using quadrupole Nd:YAG (266 nm) LA-ICP-MS at low (∼2 ppm) Pb concentrations. Laser sampling conditions significantly influence the precision of Pb isotope ratio measurements. This paper presents a set of optimum sampling conditions for the described system. Setting the laser focus above the sample surface significantly improves the precision of ratio measurements due to increased count rates and a reduction in the heterogeneity of particulate matter produced by fracturing at the site of ablation. In addition, using a more robust, mixed-gas (Ar-N2) plasma significantly increases sensitivity and reduces mass bias. With a mixed Ar-N2 plasma and optimized laser sampling conditions, single collector quadrupole LA-ICP-MS can be superior, for some applications (e.g., where micrometre-scale spatial resolution is important), to TIMS, and at low Pb concentrations is a cost-effective alternative to LA-MC-ICP-MS. The application of single detector, quadrupole LA-ICP-MS to the precise determination of common Pb isotope ratios in minerals has not been previously documented. This method is a powerful tool for use in isotope tracer studies of ore deposits and has potential applications to a range of environmental problems. © The Royal Society of Chemistry 2003. |
Persistent Identifier | http://hdl.handle.net/10722/269674 |
ISSN | 2023 Impact Factor: 3.1 2023 SCImago Journal Rankings: 0.722 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Crowe, Sean A. | - |
dc.contributor.author | Fryer, Brian J. | - |
dc.contributor.author | Samson, Iain M. | - |
dc.contributor.author | Gagnon, Joel E. | - |
dc.date.accessioned | 2019-04-30T01:49:16Z | - |
dc.date.available | 2019-04-30T01:49:16Z | - |
dc.date.issued | 2003 | - |
dc.identifier.citation | Journal of Analytical Atomic Spectrometry, 2003, v. 18, n. 11, p. 1331-1338 | - |
dc.identifier.issn | 0267-9477 | - |
dc.identifier.uri | http://hdl.handle.net/10722/269674 | - |
dc.description.abstract | This work presents a method for the precise (0.2% RSE) determination of common (i.e. non-radiogenic) Pb isotope ratios using quadrupole Nd:YAG (266 nm) LA-ICP-MS at low (∼2 ppm) Pb concentrations. Laser sampling conditions significantly influence the precision of Pb isotope ratio measurements. This paper presents a set of optimum sampling conditions for the described system. Setting the laser focus above the sample surface significantly improves the precision of ratio measurements due to increased count rates and a reduction in the heterogeneity of particulate matter produced by fracturing at the site of ablation. In addition, using a more robust, mixed-gas (Ar-N2) plasma significantly increases sensitivity and reduces mass bias. With a mixed Ar-N2 plasma and optimized laser sampling conditions, single collector quadrupole LA-ICP-MS can be superior, for some applications (e.g., where micrometre-scale spatial resolution is important), to TIMS, and at low Pb concentrations is a cost-effective alternative to LA-MC-ICP-MS. The application of single detector, quadrupole LA-ICP-MS to the precise determination of common Pb isotope ratios in minerals has not been previously documented. This method is a powerful tool for use in isotope tracer studies of ore deposits and has potential applications to a range of environmental problems. © The Royal Society of Chemistry 2003. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of Analytical Atomic Spectrometry | - |
dc.title | Precise isotope ratio determination of common Pb using quadrupole LA-ICP-MS with optimized laser sampling conditions and a robust mixed-gas plasma | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1039/b303225f | - |
dc.identifier.scopus | eid_2-s2.0-0344530504 | - |
dc.identifier.volume | 18 | - |
dc.identifier.issue | 11 | - |
dc.identifier.spage | 1331 | - |
dc.identifier.epage | 1338 | - |
dc.identifier.isi | WOS:000186367900002 | - |
dc.identifier.issnl | 0267-9477 | - |