Optimisation of a current generation ICP-QMS and benchmarking against MC-ICP-MS spectrometry for the determination of lead isotope ratios in environmental samples

Usman, Adeela; Ander, E. Louise; Bailey, Elizabeth H.; Nelms, Simon M.; Pashley, Vanessa; Young, Scott D.; Chenery, Simon

doi:10.1039/c8ja00290h

Cited by 7 publications

(4 citation statements)

References 36 publications

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“…Multicollection mass spectrometry (TIMS, MC-ICPMS) is traditionally used for high precision Pb isotope analysis . However, the technological progress of quadrupole ICP-MS (ICP-QMS) and the important Pb isotopic variation between the U-ores and the geochemical background (several percent) make quadrupole mass spectrometers capable of providing Pb isotope ratio measurements that match the needs of environmental impact studies. ,,,, Recently, Gulson et al (2018) have called into question the quality of the data produced by ICP-QMS and the conclusions drawn from such data. It may be argued that this is not an inherent limitation of the ICP-QMS technique but a lack of attention to detail in making measurements and sometimes a mismatch between the chosen methodology and the final objective of the study.…”

Section: Methodsmentioning

confidence: 99%

New Insights into Pb Isotope Fingerprinting of U-Mine Material Dissemination in the Environment: Pb Isotopes as a Memory Dissemination Tracer

Gourgiotis

Mangeret

Manhès

et al. 2019

Environ. Sci. Technol.

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Section: Methodsmentioning

confidence: 99%

New Insights into Pb Isotope Fingerprinting of U-Mine Material Dissemination in the Environment: Pb Isotopes as a Memory Dissemination Tracer

Gourgiotis

Mangeret

Manhès

et al. 2019

Environ. Sci. Technol.

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“…The sample analysis and raw data processing performed in UKHSA laboratories were based on the optimised approach developed by Usman et al [ 32 ]. A Thermo Scientific iCAP Q ICP-MS was used for all analyses, measurements were performed in helium collision mode, and the following masses were monitored: 200 Hg, 203 Tl, 204 Pb/Hg, 205 Tl, 206 Pb, 207 Pb, and 208 Pb.…”

Section: Methodsmentioning

confidence: 99%

The Use of Pb Isotope Ratios to Determine Environmental Sources of High Blood Pb Concentrations in Children: A Feasibility Study in Georgia

Laycock¹,

Chenery

Marchant³

et al. 2022

IJERPH

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The incidence of lead (Pb) poisoning in children in Georgia has been identified as a major health concern, with a recent national survey identifying that 41% of children aged 2–7 years had blood lead concentrations (BLCs) greater than the blood lead reference value (BLRV) of ≥5 µg dL−1. This study collected samples of blood, spices, paint, soil, dust, flour, tea, toys, milk, and water from 36 households in Georgia where a child had previously been identified as having a BLC > BLRV. The Pb concentrations of these samples were determined and compared to Georgian reference values. Samples from 3 households were analysed for their Pb isotope composition. The Pb isotope composition of the environmental and blood samples were compared to identify the most likely source(s) of Pb exposure. This approach identified that some spice and dust samples were the likely sources of Pb in the blood in these cases. Importantly, some soil, paint, and dust sources with high Pb concentrations could be discounted as contributing to blood Pb based on their distinct isotope composition. The data presented demonstrate the significant contribution that Pb surveillance and Pb isotope ratio analyses can make to managing Pb exposure in regions where high BLCs are identified.

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“…However, in applications where isotopic ratios are measured, high-resolution instruments commonly have several detectors (known as multi-collector). These instruments can measure individual isotopes (i.e., 204 Pb, 206 Pb, 207 Pb, 208 Pb) simultaneously, without adjustment of the magnetic or electric sectors, which yields superior isotopic ratios [151].…”

Section: Mass Spectrometry-based Techniquesmentioning

confidence: 99%

Current Techniques and Applications of Mineral Chemistry to Mineral Exploration; Examples from Glaciated Terrain: A Review

Layton‐Matthews

McClenaghan

2021

Minerals

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This paper provides a summary of traditional, current, and developing exploration techniques using indicator minerals derived from glacial sediments, with a focus on Canadian case studies. The 0.25 to 2.0 mm fraction of heavy mineral concentrates (HMC) from surficial sediments is typically used for indicator mineral surveys, with the finer (0.25–0.50 mm) fraction used as the default grain size for heavy mineral concentrate studies due to the ease of concentration and separation and subsequent mineralogical identification. Similarly, commonly used indicator minerals (e.g., Kimberlite Indicator Minerals—KIMs) are well known because of ease of optical identification and their ability to survive glacial transport. Herein, we review the last 15 years of the rapidly growing application of Automated Mineralogy (e.g., MLA, QEMSCAN, TIMA, etc) to indicator mineral studies of several ore deposit types, including Ni-Cu-PGE, Volcanogenic Massive Sulfides, and a variety of porphyry systems and glacial sediments down ice of these deposits. These studies have expanded the indicator mineral species that can be applied to mineral exploration and decreased the size of the grains examined down to ~10 microns. Chemical and isotopic fertility indexes developed for bedrock can now be applied to indicator mineral grains in glacial sediments and these methods will influence the next generation of indicator mineral studies.

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Optimisation of a current generation ICP-QMS and benchmarking against MC-ICP-MS spectrometry for the determination of lead isotope ratios in environmental samples

Abstract: Novel ANOVA methodology was used to benchmark ICP-QMS against MC-ICP-MS for Pb isotope ratios, demonstrating “fitness-for-purpose” in source apportionment.

Cited by 7 publications

References 36 publications

New Insights into Pb Isotope Fingerprinting of U-Mine Material Dissemination in the Environment: Pb Isotopes as a Memory Dissemination Tracer

New Insights into Pb Isotope Fingerprinting of U-Mine Material Dissemination in the Environment: Pb Isotopes as a Memory Dissemination Tracer

The Use of Pb Isotope Ratios to Determine Environmental Sources of High Blood Pb Concentrations in Children: A Feasibility Study in Georgia

Current Techniques and Applications of Mineral Chemistry to Mineral Exploration; Examples from Glaciated Terrain: A Review

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