Strontium isotopic analysis of environmental microsamples by inductively coupled plasma – tandem mass spectrometry
In this work, a new method has been developed for accurate and precise Sr isotopic analysis of microsamples via inductively coupled plasma – tandem mass spectrometry (ICP-MS/MS). For introduction of low-volume samples, a setup consisting of a syringe-driven pump that allows to work at low and stable...
Published in: | Journal of Analytical Atomic Spectrometry |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | http://hdl.handle.net/11391/1516083 https://doi.org/10.1039/D1JA00329A |
id |
ftuniperugiairis:oai:research.unipg.it:11391/1516083 |
---|---|
record_format |
openpolar |
spelling |
ftuniperugiairis:oai:research.unipg.it:11391/1516083 2024-02-11T09:57:59+01:00 Strontium isotopic analysis of environmental microsamples by inductively coupled plasma – tandem mass spectrometry Bertinetti, Stefano Bolea-Fernandez, Eduardo Malandrino, Mery Moroni, Beatrice Cappelletti, David Grotti, Marco Vanhaecke, Frank Bertinetti, Stefano Bolea-Fernandez, Eduardo Malandrino, Mery Moroni, Beatrice Cappelletti, David Grotti, Marco Vanhaecke, Frank 2022 STAMPA http://hdl.handle.net/11391/1516083 https://doi.org/10.1039/D1JA00329A eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000724923700001 volume:37 issue:1 firstpage:103 lastpage:113 numberofpages:11 journal:JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY http://hdl.handle.net/11391/1516083 doi:10.1039/D1JA00329A info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85122896994 http://dx.doi.org/10.1039/D1JA00329A info:eu-repo/semantics/article 2022 ftuniperugiairis https://doi.org/10.1039/D1JA00329A 2024-01-24T18:04:34Z In this work, a new method has been developed for accurate and precise Sr isotopic analysis of microsamples via inductively coupled plasma – tandem mass spectrometry (ICP-MS/MS). For introduction of low-volume samples, a setup consisting of a syringe-driven pump that allows to work at low and stable sample introduction flow rates was combined with a high-efficiency sample introduction system, originally designed for the introduction of single cells and other discrete entities into the ICP. The method requires 240 μL of sample only, introduced at a sample uptake rate of 20 μL min−1 and allows for the straightforward measurement of the 87Sr/86Sr isotope ratio without prior Rb/Sr separation. The isobaric overlap of the signals of 87Rb and 87Sr is overcome by the selective reaction between Sr+ and CH3F gas in the collision/reaction cell (CRC) of an ICP-MS/MS instrument. In this way, Sr+ ions are measured as their corresponding SrF+ reaction product ions in a mass-shift approach. A multivariate approach was applied to obtain optimum instrument settings (sample uptake rate, nebulizer gas flow rate, make-up gas flow rate, and plasma sampling depth) for maximum sensitivity and optimum precision of the 87Sr/86Sr and 88Sr/86Sr isotope ratios. The method thus developed was found to be accurate (mean bias = −0.001 ± 0.070%, with respect to a quality control reference value) and showed an external precision of 0.17% (RSD, n = 24) at an analytical concentration of 2 ng g−1. The method was applied to the analysis of small-volume digests of samples of Antarctic atmospheric particulates (PM10) and of soils from Australia and South America as potential source areas for atmospheric particulates reaching East Antarctica. The raw soil samples were handled using a dedicated resuspension/collection system to select the finest fraction (PM2.5), thus simulating the long-range transport of mineral dust in the atmosphere. The results obtained for these samples were found to be in good agreement with literature data, demonstrating the ... Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica IRIS Università degli Studi di Perugia Antarctic East Antarctica Journal of Analytical Atomic Spectrometry 37 1 103 113 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Perugia |
op_collection_id |
ftuniperugiairis |
language |
English |
description |
In this work, a new method has been developed for accurate and precise Sr isotopic analysis of microsamples via inductively coupled plasma – tandem mass spectrometry (ICP-MS/MS). For introduction of low-volume samples, a setup consisting of a syringe-driven pump that allows to work at low and stable sample introduction flow rates was combined with a high-efficiency sample introduction system, originally designed for the introduction of single cells and other discrete entities into the ICP. The method requires 240 μL of sample only, introduced at a sample uptake rate of 20 μL min−1 and allows for the straightforward measurement of the 87Sr/86Sr isotope ratio without prior Rb/Sr separation. The isobaric overlap of the signals of 87Rb and 87Sr is overcome by the selective reaction between Sr+ and CH3F gas in the collision/reaction cell (CRC) of an ICP-MS/MS instrument. In this way, Sr+ ions are measured as their corresponding SrF+ reaction product ions in a mass-shift approach. A multivariate approach was applied to obtain optimum instrument settings (sample uptake rate, nebulizer gas flow rate, make-up gas flow rate, and plasma sampling depth) for maximum sensitivity and optimum precision of the 87Sr/86Sr and 88Sr/86Sr isotope ratios. The method thus developed was found to be accurate (mean bias = −0.001 ± 0.070%, with respect to a quality control reference value) and showed an external precision of 0.17% (RSD, n = 24) at an analytical concentration of 2 ng g−1. The method was applied to the analysis of small-volume digests of samples of Antarctic atmospheric particulates (PM10) and of soils from Australia and South America as potential source areas for atmospheric particulates reaching East Antarctica. The raw soil samples were handled using a dedicated resuspension/collection system to select the finest fraction (PM2.5), thus simulating the long-range transport of mineral dust in the atmosphere. The results obtained for these samples were found to be in good agreement with literature data, demonstrating the ... |
author2 |
Bertinetti, Stefano Bolea-Fernandez, Eduardo Malandrino, Mery Moroni, Beatrice Cappelletti, David Grotti, Marco Vanhaecke, Frank |
format |
Article in Journal/Newspaper |
author |
Bertinetti, Stefano Bolea-Fernandez, Eduardo Malandrino, Mery Moroni, Beatrice Cappelletti, David Grotti, Marco Vanhaecke, Frank |
spellingShingle |
Bertinetti, Stefano Bolea-Fernandez, Eduardo Malandrino, Mery Moroni, Beatrice Cappelletti, David Grotti, Marco Vanhaecke, Frank Strontium isotopic analysis of environmental microsamples by inductively coupled plasma – tandem mass spectrometry |
author_facet |
Bertinetti, Stefano Bolea-Fernandez, Eduardo Malandrino, Mery Moroni, Beatrice Cappelletti, David Grotti, Marco Vanhaecke, Frank |
author_sort |
Bertinetti, Stefano |
title |
Strontium isotopic analysis of environmental microsamples by inductively coupled plasma – tandem mass spectrometry |
title_short |
Strontium isotopic analysis of environmental microsamples by inductively coupled plasma – tandem mass spectrometry |
title_full |
Strontium isotopic analysis of environmental microsamples by inductively coupled plasma – tandem mass spectrometry |
title_fullStr |
Strontium isotopic analysis of environmental microsamples by inductively coupled plasma – tandem mass spectrometry |
title_full_unstemmed |
Strontium isotopic analysis of environmental microsamples by inductively coupled plasma – tandem mass spectrometry |
title_sort |
strontium isotopic analysis of environmental microsamples by inductively coupled plasma – tandem mass spectrometry |
publishDate |
2022 |
url |
http://hdl.handle.net/11391/1516083 https://doi.org/10.1039/D1JA00329A |
geographic |
Antarctic East Antarctica |
geographic_facet |
Antarctic East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000724923700001 volume:37 issue:1 firstpage:103 lastpage:113 numberofpages:11 journal:JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY http://hdl.handle.net/11391/1516083 doi:10.1039/D1JA00329A info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85122896994 http://dx.doi.org/10.1039/D1JA00329A |
op_doi |
https://doi.org/10.1039/D1JA00329A |
container_title |
Journal of Analytical Atomic Spectrometry |
container_volume |
37 |
container_issue |
1 |
container_start_page |
103 |
op_container_end_page |
113 |
_version_ |
1790593528988958720 |