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Commodore S, Christopher S, Wolf B, Svendsen E. Assessment of trace elements directly from archived total suspended particulate filters by laser ablation ICP-MS: A case study of South Carolina. J Trace Elem Miner 2023; 3:100041. [PMID: 36776477 PMCID: PMC9912379 DOI: 10.1016/j.jtemin.2022.100041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Exposure to particulate air pollution is one of the greatest environmental risk factors for adverse human health outcomes. However, the constituents that may be responsible for such adverse health effects have not been fully studied. Methods Total suspended particulates filters collected every 6 days in 2011 from three South Carolina locations were used in this case study. An inductively coupled plasma mass spectrometer interfaced with a laser ablation system (LA-ICP-MS) was used to directly analyze 41 inorganic elemental species on air pollution filters. Then, machine learning and multivariate statistical methods was employed to identify combinatorial patterns in the data and classify sites based on their elemental composition. Results Forty-one elements were assessed and 33 were used in subsequent analysis. Correlations between United States Environmental Protection Agency (US EPA)'s chemical analysis dataset and data from the current study revealed significant associations between 7/15 elements with enough variation for comparison (r between 0.28 to 0.66, p<0.05). Subsequent multivariate analyses revealed four distinct patterns in the distribution of elements by sample location throughout the year. Conclusion The different airborne elements may need to be assessed to understand combinations of elements which occur together over space and/or time. Such information can be helpful in planning effective counter measures and strategies to control particulate air pollution.
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Affiliation(s)
- Sarah Commodore
- Indiana University, Department of Environmental and Occupational Health, Bloomington, IN, United States,Corresponding author. (S. Commodore)
| | - Steven Christopher
- National Institute of Standards and Technology, Charleston, SC, United States
| | - Bethany Wolf
- Medical University of South Carolina, Department of Public Health Sciences, Charleston, SC, United States
| | - Erik Svendsen
- Medical University of South Carolina, Department of Public Health Sciences, Charleston, SC, United States
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Lores-Padín A, Fernández B, Álvarez L, González-Iglesias H, Lengyel I, Pereiro R. Multiplex bioimaging of proteins-related to neurodegenerative diseases in eye sections by laser ablation - Inductively coupled plasma - Mass spectrometry using metal nanoclusters as labels. Talanta 2020; 221:121489. [PMID: 33076097 DOI: 10.1016/j.talanta.2020.121489] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/23/2020] [Accepted: 07/29/2020] [Indexed: 11/29/2022]
Abstract
Simultaneous determination of proteins with micrometric resolution is a significant challenge. In this study, laser ablation (LA) inductively coupled plasma - mass spectrometry (ICP-MS) was employed to quantify the distribution of proteins associated to the eye disease age-related macular degeneration (AMD) using antibodies labelled with three different metal nanoclusters (MNCs). PtNCs, AuNCs and AgNCs contain hundreds of metal atoms and were used to detect metallothionein 1/2 (MT1/2), complement factor H (CFH) and amyloid precursor protein (APP) in retina, ciliary body, retinal pigment epithelium (RPE), choroid and sclera from human cadaveric eye sections. First, the labelling of MNCs bioconjugated primary antibodies (Ab) was optimised following an immunolabelling protocol to avoid the non-specific interaction of MNCs with the tissue. Then, the LA and ICP-MS conditions were studied to obtain high-resolution images for the simultaneous detection of the three labels at the same tissue section. A significant signal amplification was found when using AuNCs, AgNCs and PtNCs labelled Ab of 310, 723 and 1194 respectively. After the characterisation of MNCs labelled immunoprobes, the Ab labelling was used for determination of MT1/2, CFH and APP in the RPE-choroid-sclera, where accumulation of extracellular deposits related to AMD was observed. Experimental results suggest that this method is fully suitable for the simultaneous detection of at least three different proteins.
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Affiliation(s)
- Ana Lores-Padín
- Department of Physical and Analytical Chemistry, University of Oviedo, Julian Clavería 8, 33006, Oviedo, Spain
| | - Beatriz Fernández
- Department of Physical and Analytical Chemistry, University of Oviedo, Julian Clavería 8, 33006, Oviedo, Spain; Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Oviedo, Spain.
| | - Lydia Álvarez
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Oviedo, Spain; Instituto Oftalmológico Fernández-Vega, Avda. Dres. Fernández-Vega, 34, 33012, Oviedo, Spain
| | - Héctor González-Iglesias
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Oviedo, Spain; Instituto Oftalmológico Fernández-Vega, Avda. Dres. Fernández-Vega, 34, 33012, Oviedo, Spain.
| | - Imre Lengyel
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom
| | - Rosario Pereiro
- Department of Physical and Analytical Chemistry, University of Oviedo, Julian Clavería 8, 33006, Oviedo, Spain; Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Oviedo, Spain
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Mounicou S, Frelon S, Le Guernic A, Eb-Levadoux Y, Camilleri V, Février L, Pierrisnard S, Carasco L, Gilbin R, Mahé K, Tabouret H, Bareille G, Simon O. Use of fish otoliths as a temporal biomarker of field uranium exposure. Sci Total Environ 2019; 690:511-521. [PMID: 31301492 DOI: 10.1016/j.scitotenv.2019.06.534] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/28/2019] [Accepted: 06/30/2019] [Indexed: 06/10/2023]
Abstract
This study aimed to determine uranium (U) pollution over time using otoliths as a marker of fish U contamination. Experiments were performed in field contamination (~20 μg L-1: encaged fish: 15d, 50d and collected wild fish) and in laboratory exposure conditions (20 and 250 μg L-1, 20d). We reported the U seasonal concentrations in field waterborne exposed roach fish (Rutilus rutilus), in organs and otoliths. Otoliths were analyzed by ICPMS and LA-ICP SF MS of the entire growth zone. Concentrations were measured on transects from nucleus to the edge of otoliths to characterize environmental variations of metal accumulation. Results showed a spatial and temporal variation of U contamination in water (from 51 to 9.4 μg L-1 at the surface of the water column), a high and seasonal accumulation in fish organs, mainly the digestive tract (from 1000 to 30,000 ng g-1, fw), the gills (from 1600 to 3200 ng g-1, fw) and the muscle (from 144 to 1054 ng g-1, fw). U was detected throughout the otolith and accumulation varied over the season from 70 to 350 ng g-1, close to the values measured (310 ng g-1) after high exposure levels in laboratory conditions. U in otoliths of encaged fish showed rapid and high U accumulation from 20 to 150 ng g-1. The U accumulation signal was mainly detected on the edge of the otolith, showing two U accumulation peaks, probably correlated to fish age, i.e. 2 years old. Surprisingly, elemental U and Zn signatures followed the same pattern therefore using the same uptake pathways. Laboratory, caging and field experiments indicated that otoliths were able to quickly accumulate U on the surface even for low levels and to store high levels of U. This study is an encouraging first step in using otoliths as a marker of U exposure.
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Affiliation(s)
- S Mounicou
- CNRS/Univ Pau & Pays Adour/E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR5254, 64000 Pau, France
| | - S Frelon
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - A Le Guernic
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - Y Eb-Levadoux
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - V Camilleri
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - L Février
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LR2T, Cadarache, Saint Paul-lez-Durance 13115, France
| | - S Pierrisnard
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LR2T, Cadarache, Saint Paul-lez-Durance 13115, France
| | - L Carasco
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LR2T, Cadarache, Saint Paul-lez-Durance 13115, France
| | - R Gilbin
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - K Mahé
- IFREMER, Centre Manche Mer du Nord, Laboratoire Ressources Halieutiques, BP 699, 62321 Boulogne-sur-mer, France
| | - H Tabouret
- CNRS/Univ Pau & Pays Adour/E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR5254, 64000 Pau, France
| | - G Bareille
- CNRS/Univ Pau & Pays Adour/E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR5254, 64000 Pau, France
| | - O Simon
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France.
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Wojcieszek J, Jiménez-Lamana J, Bierła K, Ruzik L, Asztemborska M, Jarosz M, Szpunar J. Uptake, translocation, size characterization and localization of cerium oxide nanoparticles in radish (Raphanus sativus L.). Sci Total Environ 2019; 683:284-292. [PMID: 31132708 DOI: 10.3389/fenvs.2020.00100] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/17/2019] [Accepted: 05/18/2019] [Indexed: 05/21/2023]
Abstract
Due to their unique physical and chemical properties, the production and use of cerium oxide nanoparticles (CeO2 NPs) in different areas, especially in automotive industry, is rapidly increasing, causing their presence in the environment. Released CeO2 NPs can undergo different transformations and interact with the soil and hence with plants, providing a potential pathway for human exposure and leading to serious concerns about their impact on the ecosystem and human organism. This study investigates the uptake, bioaccumulation, possible translocation and localization of CeO2 NPs in a model plant (Raphanus sativus L.), whose edible part is in direct contact with the soil where contamination is more likely to happen. The stability of CeO2 NPs in plant growth medium as well as after applying a standard enzymatic digestion procedure was tested by single particle ICP-MS (SP-ICP-MS) showing that CeO2 NPs can remain intact after enzymatic digestion; however, an agglomeration process was observed in the growth medium already after one day of cultivation. An enzymatic digestion method was next used in order to extract intact nanoparticles from the tissues of plants cultivated from the stage of seeds, followed by size characterization by SP-ICP-MS. The results obtained by SP-ICP-MS showed a narrower size distribution in the case of roots suggesting preferential uptake of smaller nanoparticles which led to the conclusion that plants do not take up the CeO2 NPs agglomerates present in the medium. However, nanoparticles at higher diameters were observed after analysis of leaves plus stems. Additionally, a small degree of dissolution was observed in the case of roots. Finally, after CeO2 NPs treatment of adult plants, the spatial distribution of intact CeO2 NPs in the radish roots was studied by laser ablation ICP-MS (LA-ICP-MS) and the ability of NPs to enter and be accumulated in root tissues was confirmed.
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Affiliation(s)
| | - Javier Jiménez-Lamana
- Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials (IPREM), CNRS-UPPA, UMR5254, Pau, France.
| | - Katarzyna Bierła
- Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials (IPREM), CNRS-UPPA, UMR5254, Pau, France
| | - Lena Ruzik
- Faculty of Chemistry, Warsaw University of Technology, Poland
| | - Monika Asztemborska
- Isotopic Laboratory, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Maciej Jarosz
- Faculty of Chemistry, Warsaw University of Technology, Poland
| | - Joanna Szpunar
- Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials (IPREM), CNRS-UPPA, UMR5254, Pau, France
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5
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Wojcieszek J, Jiménez-Lamana J, Bierła K, Ruzik L, Asztemborska M, Jarosz M, Szpunar J. Uptake, translocation, size characterization and localization of cerium oxide nanoparticles in radish (Raphanus sativus L.). Sci Total Environ 2019; 683:284-292. [PMID: 31132708 DOI: 10.1016/j.scitotenv.2019.05.265] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/17/2019] [Accepted: 05/18/2019] [Indexed: 05/21/2023]
Abstract
Due to their unique physical and chemical properties, the production and use of cerium oxide nanoparticles (CeO2 NPs) in different areas, especially in automotive industry, is rapidly increasing, causing their presence in the environment. Released CeO2 NPs can undergo different transformations and interact with the soil and hence with plants, providing a potential pathway for human exposure and leading to serious concerns about their impact on the ecosystem and human organism. This study investigates the uptake, bioaccumulation, possible translocation and localization of CeO2 NPs in a model plant (Raphanus sativus L.), whose edible part is in direct contact with the soil where contamination is more likely to happen. The stability of CeO2 NPs in plant growth medium as well as after applying a standard enzymatic digestion procedure was tested by single particle ICP-MS (SP-ICP-MS) showing that CeO2 NPs can remain intact after enzymatic digestion; however, an agglomeration process was observed in the growth medium already after one day of cultivation. An enzymatic digestion method was next used in order to extract intact nanoparticles from the tissues of plants cultivated from the stage of seeds, followed by size characterization by SP-ICP-MS. The results obtained by SP-ICP-MS showed a narrower size distribution in the case of roots suggesting preferential uptake of smaller nanoparticles which led to the conclusion that plants do not take up the CeO2 NPs agglomerates present in the medium. However, nanoparticles at higher diameters were observed after analysis of leaves plus stems. Additionally, a small degree of dissolution was observed in the case of roots. Finally, after CeO2 NPs treatment of adult plants, the spatial distribution of intact CeO2 NPs in the radish roots was studied by laser ablation ICP-MS (LA-ICP-MS) and the ability of NPs to enter and be accumulated in root tissues was confirmed.
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Affiliation(s)
| | - Javier Jiménez-Lamana
- Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials (IPREM), CNRS-UPPA, UMR5254, Pau, France.
| | - Katarzyna Bierła
- Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials (IPREM), CNRS-UPPA, UMR5254, Pau, France
| | - Lena Ruzik
- Faculty of Chemistry, Warsaw University of Technology, Poland
| | - Monika Asztemborska
- Isotopic Laboratory, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Maciej Jarosz
- Faculty of Chemistry, Warsaw University of Technology, Poland
| | - Joanna Szpunar
- Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials (IPREM), CNRS-UPPA, UMR5254, Pau, France
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Sinnatamby RN, Loewen TN, Luo Y, Pearson DG, Bicalho B, Grant-Weaver I, Cuss CW, Poesch M, Shotyk W. Spatial assessment of major and trace element concentrations from Lower Athabasca Region Trout-perch (Percopsis omiscomaycus) otoliths. Sci Total Environ 2019; 655:363-373. [PMID: 30471605 DOI: 10.1016/j.scitotenv.2018.11.168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 11/05/2018] [Accepted: 11/11/2018] [Indexed: 05/05/2023]
Abstract
The Lower Athabasca Region (LAR) is home to the largest bitumen deposit in Alberta, and has seen industrial development related to the extraction and processing of bituminous sands since the late 1960s. Along with industrial and economic growth related to oil sands development, environmental concerns have increased in recent decades, including those about potential effects on fish. We measured major and trace element concentrations in Trout-perch otoliths from the Athabasca and Clearwater Rivers in the LAR, to illustrate spatial variations and identify possible industrial impacts. Both laser ablation ICP-MS and solution-based ICP-MS methods were employed. Of the trace elements enriched in bitumen (V, Ni, Mo and Re), only Ni and Re were above the limits of detection using at least one of the methods. The only significant differences in element concentrations between upstream and downstream locations were found for Li, Cu, and Pb which were more abundant upstream of industry. For comparison and additional perspective, otoliths from the same fish species, but taken from the Batchawana River in northern Ontario, were also examined. The fish from Alberta yielded greater concentrations of Ba, Bi, Li, Mg, Na, Re, Sc, Th and Y, but the Ontario fish had more Cr, Rb and Tl, likely because of differences in geology.
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Affiliation(s)
| | - Tracey N Loewen
- Freshwater Institute, Fisheries & Oceans, Winnipeg, MB, Canada
| | - Yan Luo
- Deparment of Earth & Atmospheric Science, University of Alberta, Edmonton, AB, Canada
| | - D Graham Pearson
- Deparment of Earth & Atmospheric Science, University of Alberta, Edmonton, AB, Canada
| | - Beatriz Bicalho
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada
| | - Iain Grant-Weaver
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada
| | - Chad W Cuss
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada
| | - Mark Poesch
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada
| | - William Shotyk
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada.
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7
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Cruz-Alonso M, Fernandez B, Navarro A, Junceda S, Astudillo A, Pereiro R. Laser ablation ICP-MS for simultaneous quantitative imaging of iron and ferroportin in hippocampus of human brain tissues with Alzheimer's disease. Talanta 2019; 197:413-21. [PMID: 30771955 DOI: 10.1016/j.talanta.2019.01.056] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/11/2019] [Accepted: 01/14/2019] [Indexed: 11/23/2022]
Abstract
Laser ablation inductively coupled plasma - mass spectrometry (LA-ICP-MS) is proposed for a better understanding of metals and proteins distribution in micrometre structures of human brain tissues. Simultaneous absolute quantitative imaging of Fe and ferroportin (FPN), in 5 µm thick tissue sections of the stratum pyramidale of hippocampus CA1 region, was carried out for Alzheimer disease (AD) patients and healthy controls (HC). For the imaging of FPN by LA-ICP-MS, antibodies were labelled via carbodiimide crosslinking with fluorescent gold nanoclusters (AuNCs) of 2.2 nm diameter, enabling a high amplification (314 gold atoms per NC). Laboratory made gelatin standards containing Fe and Au were used for LA-ICP-MS calibration. Results showed that iron presents an increased concentration in AD donors compared with HC donors, whereas similar concentrations of FPN in AD donors with respect to HC donors were obtained. The average absolute FPN concentrations in selected areas obtained with the proposed AuNCs method were compared with the levels obtained by densitometric analysis with a traditional IHC approach, observing a similar trend in all cases.
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Asai S, Ohata M, Yomogida T, Saeki M, Ohba H, Hanzawa Y, Horita T, Kitatsuji Y. Determination of 107Pd in Pd purified by selective precipitation from spent nuclear fuel by laser ablation ICP-MS. Anal Bioanal Chem 2018; 411:973-983. [PMID: 30552491 DOI: 10.1007/s00216-018-1527-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 11/15/2018] [Accepted: 11/27/2018] [Indexed: 11/30/2022]
Abstract
Determination of radiopalladium 107Pd is required to ensure radiation safety of the Pd extracted from spent nuclear fuel for recycling or disposal. We employed nanosecond laser ablation inductively coupled plasma quadrupole mass spectrometry (ns-LA-ICP-QMS) to simplify the analytical procedure of 107Pd. Pd was separated through a selective Pd precipitation reaction induced by pulsed laser irradiation that reduces Pd(II) ions to metal Pd(0). Laser ablation facilitates direct measurement of the Pd precipitates, skipping the dissolution and dilution procedure with aqua regia and HCl, which causes serious corrosion damage to the introduction system of the ICP. In the present study, 102Pd in natural Pd standard solution was used as an internal standard owing to its absence in spent nuclear fuel. Pd precipitates with diameters ranging from 0.2 to 0.5 μm, obtained by pulsed laser irradiation, were embedded uniformly on the surface of the centrifugal filter to form a microscopically thin and flat Pd surface. The resulting homogeneous Pd layer is suitable for obtaining a stable signal ratio of 107Pd/102Pd (< 4%, 2RSD). The mass bias-corrected ratio of 107Pd/102Pd and the amount of 107Pd were 0.163 ± 0.004 and 17.8 ± 0.6 ng, respectively, which correspond to the values obtained by solution nebulization measurement after the dissolution of identical Pd precipitates. Graphical abstract ᅟ.
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Affiliation(s)
- Shiho Asai
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency (JAEA), 2-4 Shirakata, Naka-gun, Ibaraki, 319-1195, Japan.
| | - Masaki Ohata
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8563, Japan
| | - Takumi Yomogida
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency (JAEA), 2-4 Shirakata, Naka-gun, Ibaraki, 319-1195, Japan
| | - Morihisa Saeki
- Quantum Beam Science Research Directorate, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1, Anagawa, Inage-ku, Chiba-shi, Chiba, 263-8555, Japan
| | - Hironori Ohba
- Quantum Beam Science Research Directorate, National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1, Anagawa, Inage-ku, Chiba-shi, Chiba, 263-8555, Japan
| | - Yukiko Hanzawa
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency (JAEA), 2-4 Shirakata, Naka-gun, Ibaraki, 319-1195, Japan
| | - Takuma Horita
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency (JAEA), 2-4 Shirakata, Naka-gun, Ibaraki, 319-1195, Japan
| | - Yoshihiro Kitatsuji
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency (JAEA), 2-4 Shirakata, Naka-gun, Ibaraki, 319-1195, Japan
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Martyna A, Gäbler HE, Bahr A, Zadora G. Geochemical wolframite fingerprinting - the likelihood ratio approach for laser ablation ICP-MS data. Anal Bioanal Chem 2018; 410:3073-91. [PMID: 29663058 DOI: 10.1007/s00216-018-1007-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/26/2018] [Accepted: 03/05/2018] [Indexed: 11/23/2022]
Abstract
Wolframite has been specified as a ‘conflict mineral’ by a U.S. Government Act, which obliges companies that use these minerals to report their origin. Minerals originating from conflict regions in the Democratic Republic of the Congo shall be excluded from the market as their illegal mining, trading, and taxation are supposed to fuel ongoing violent conflicts. The German Federal Institute for Geosciences and Natural Resources (BGR) developed a geochemical fingerprinting method for wolframite based on laser ablation inductively coupled plasma-mass spectrometry. Concentrations of 46 elements in about 5300 wolframite grains from 64 mines were determined. The issue of verifying the declared origins of the wolframite samples may be framed as a forensic problem by considering two contrasting hypotheses: the examined sample and a sample collected from the declared mine originate from the same mine (H1), and the two samples come from different mines (H2). The solution is found using the likelihood ratio (LR) theory. On account of the multidimensionality, the lack of normal distribution of data within each sample, and the huge within-sample dispersion in relation to the dispersion between samples, the classic LR models had to be modified. Robust principal component analysis and linear discriminant analysis were used to characterize samples. The similarity of two samples was expressed by Kolmogorov-Smirnov distances, which were interpreted in view of H1 and H2 hypotheses within the LR framework. The performance of the models, controlled by the levels of incorrect responses and the empirical cross entropy, demonstrated that the proposed LR models are successful in verifying the authenticity of the wolframite samples. Geochemical wolframite fingerprinting ![]()
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Ko JA, Furuta N, Lim HB. Quantitative mapping of elements in basil leaves (Ocimum basilicum) based on cesium concentration and growth period using laser ablation ICP-MS. Chemosphere 2018; 190:368-374. [PMID: 29024882 DOI: 10.1016/j.chemosphere.2017.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 09/20/2017] [Accepted: 10/01/2017] [Indexed: 06/07/2023]
Abstract
Quantitative elemental mapping of metallic pollutants in sweet basil was studied by laser ablation (LA)-ICP-MS. For this, the sweet basil was cultivated in Hoagland nutrient solution spiked with 100 and 1000 ng mL-1 of Cs for 10-60 days. Then, the Cs distribution in collected leaves was determined by LA-ICP-MS using lab-synthesized standard pellets based on NIST 1573a tomato leaves. For comparison, S, Ca, and K were also simultaneously determined in this measurement with a13C+ signal from the leaves as an internal standard. The obtained calibration curves showed linear coefficient of determination (R2) of 0.991 for K and 0.999 for Cs. The concentration of Cs measured in the basil leaves increased with growth period and pollutant concentration, and accumulation followed the order of leaf margin, petiole, midrib, and veins. Although no visible symptom was detected, significant suppression of the growth rate was observed due to the presence of high-concentration Cs. The experimental model demonstrated herein showed potential for studying the influence of radioactive pollutants on plants and other organisms in the food chain.
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Affiliation(s)
- Jung Aa Ko
- Department of Chemistry, Dankook University, Yongin-si, Gyeonggi-do 448-701, South Korea; Future Environmental Research Center, Korea Institute of Toxicology, Jinju 660-844, South Korea
| | - Naoki Furuta
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo 112-8551, Japan
| | - Heung Bin Lim
- Department of Chemistry, Dankook University, Yongin-si, Gyeonggi-do 448-701, South Korea.
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Domeradzka-Gajda K, Nocuń M, Roszak J, Janasik B, Quarles CD, Wąsowicz W, Grobelny J, Tomaszewska E, Celichowski G, Ranoszek-Soliwoda K, Cieślak M, Puchowicz D, Gonzalez JJ, Russo RE, Stępnik M. A study on the in vitro percutaneous absorption of silver nanoparticles in combination with aluminum chloride, methyl paraben or di-n-butyl phthalate. Toxicol Lett 2017; 272:38-48. [PMID: 28315385 DOI: 10.1016/j.toxlet.2017.03.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 03/06/2017] [Accepted: 03/08/2017] [Indexed: 10/20/2022]
Abstract
Some reports indicate that the silver released from dermally applied products containing silver nanoparticles (AgNP) (e.g. wound dressings or cosmetics) can penetrate the skin, particularly if damaged. AgNP were also shown to have cytotoxic and genotoxic activity. In the present study percutaneous absorption of AgNP of two different nominal sizes (Ag15nm or Ag45nm by STEM) and surface modification, i.e. citrate or PEG stabilized nanoparticles, in combination with cosmetic ingredients, i.e. aluminum chloride (AlCl3), methyl paraben (MPB), or di-n-butyl phthalate (DBPH) was assessed using in vitro model based on dermatomed pig skin. The inductively coupled plasma mass spectrometry (ICP-MS) measurements after 24h in receptor fluid indicated low, but detectable silver absorption and no statistically significant differences in the penetration between the 4 types of AgNP studied at 47, 470 or 750μg/ml. Similarly, no significant differences were observed for silver penetration when the AgNP were used in combinations with AlCl3 (500μM), MPB (1250μM) or DBPH (35μM). The measured highest amount of Ag that penetrated was 0.45ng/cm2 (0.365-0.974ng/cm2) for PEG stabilized Ag15nm+MPB.
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Affiliation(s)
| | - Marek Nocuń
- Department of Toxicology and Carcinogenesis, Nofer Institute of Occupational Medicine, Łódź, Poland
| | - Joanna Roszak
- Department of Toxicology and Carcinogenesis, Nofer Institute of Occupational Medicine, Łódź, Poland
| | - Beata Janasik
- Department of Toxicology and Carcinogenesis, Nofer Institute of Occupational Medicine, Łódź, Poland
| | | | - Wojciech Wąsowicz
- Department of Toxicology and Carcinogenesis, Nofer Institute of Occupational Medicine, Łódź, Poland
| | - Jarosław Grobelny
- Department of Materials Technology and Chemistry, University of Łódź, Łódź, Poland
| | - Emilia Tomaszewska
- Department of Materials Technology and Chemistry, University of Łódź, Łódź, Poland
| | - Grzegorz Celichowski
- Department of Materials Technology and Chemistry, University of Łódź, Łódź, Poland
| | | | - Małgorzata Cieślak
- Scientific Department of Unconventional Technologies and Textiles, Textile Research Institute, Łódź, Poland
| | - Dorota Puchowicz
- Scientific Department of Unconventional Technologies and Textiles, Textile Research Institute, Łódź, Poland
| | | | | | - Maciej Stępnik
- Department of Toxicology and Carcinogenesis, Nofer Institute of Occupational Medicine, Łódź, Poland.
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Queipo Abad S, Rodríguez-González P, García Alonso JI. Evidence of the direct adsorption of mercury in human hair during occupational exposure to mercury vapour. J Trace Elem Med Biol 2016; 36:16-21. [PMID: 27259347 DOI: 10.1016/j.jtemb.2016.03.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 02/29/2016] [Accepted: 03/22/2016] [Indexed: 11/21/2022]
Abstract
We have found clear evidence of direct adsorption of mercury in human hair after the occupational exposure to mercury vapour. We have performed both longitudinal analysis of human hair by laser ablation ICP-MS and speciation analysis by gas chromatography ICP-MS in single hair strands of 5 individuals which were occupationally exposed to high levels of mercury vapour and showed acute mercury poisoning symptoms. Hair samples, between 3.5 and 11cm long depending on the individual, were taken ca. three months after exposure. Single point laser ablation samples of 50μm diameter were taken at 1mm intervals starting from the root of the hairs. Sulfur-34 was used as internal standard. The ratio (202)Hg/(34)S showed a distinct pattern of mercury concentration with much lower levels of mercury near the root of the hair and high levels of mercury near the end of the hair. In all cases a big jump in the concentration of mercury in hair occurred at a given distance from the root, between 32 and 42mm depending on the individual, with a high and almost constant concentration of mercury for longer distances to the root. When we took into account the rate of hair growth in humans, 9-15mm/month, the jump in mercury concentration agreed approximately with the dates when the contamination occurred with the new growing hair showing much lower mercury concentration. In some cases the concentration of mercury at the tip of the hair was ca. 1000 times higher than that near the root. Additionally, speciation studies confirmed that mercury in all hair samples was present as inorganic mercury. The only explanation for these results was the direct adsorption of mercury vapour in hair at the time of exposure.
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Affiliation(s)
- Silvia Queipo Abad
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Spain
| | - Pablo Rodríguez-González
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Spain
| | - J Ignacio García Alonso
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Spain.
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Hsiao IL, Bierkandt FS, Reichardt P, Luch A, Huang YJ, Jakubowski N, Tentschert J, Haase A. Quantification and visualization of cellular uptake of TiO2 and Ag nanoparticles: comparison of different ICP-MS techniques. J Nanobiotechnology 2016; 14:50. [PMID: 27334629 PMCID: PMC4918130 DOI: 10.1186/s12951-016-0203-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 06/09/2016] [Indexed: 12/22/2022] Open
Abstract
Background Safety assessment of nanoparticles (NPs) requires techniques that are suitable to quantify tissue and cellular uptake of NPs. The most commonly applied techniques for this purpose are based on inductively coupled plasma mass spectrometry (ICP-MS). Here we apply and compare three different ICP-MS methods to investigate the cellular uptake of TiO2 (diameter 7 or 20 nm, respectively) and Ag (diameter 50 or 75 nm, respectively) NPs into differentiated mouse neuroblastoma cells (Neuro-2a cells). Cells were incubated with different amounts of the NPs. Thereafter they were either directly analyzed by laser ablation ICP-MS (LA-ICP-MS) or were lysed and lysates were analyzed by ICP-MS and by single particle ICP-MS (SP-ICP-MS). Results All techniques confirmed that smaller particles were taken up to a higher extent when values were converted in an NP number-based dose metric. In contrast to ICP-MS and LA-ICP-MS, this measure is already directly provided through SP-ICP-MS. Analysis of NP size distribution in cell lysates by SP-ICP-MS indicates the formation of NP agglomerates inside cells. LA-ICP-MS imaging shows that some of the 75 nm Ag NPs seemed to be adsorbed onto the cell membranes and were not penetrating into the cells, while most of the 50 nm Ag NPs were internalized. LA-ICP-MS confirms high cell-to-cell variability for NP uptake. Conclusions Based on our data we propose to combine different ICP-MS techniques in order to reliably determine the average NP mass and number concentrations, NP sizes and size distribution patterns as well as cell-to-cell variations in NP uptake and intracellular localization. Electronic supplementary material The online version of this article (doi:10.1186/s12951-016-0203-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- I-Lun Hsiao
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany.,Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Frank S Bierkandt
- Division of Inorganic Trace Analysis, German Federal Institute for Materials Research and Testing (BAM), Berlin, Germany
| | - Philipp Reichardt
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Andreas Luch
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Yuh-Jeen Huang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Norbert Jakubowski
- Division of Inorganic Trace Analysis, German Federal Institute for Materials Research and Testing (BAM), Berlin, Germany
| | - Jutta Tentschert
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Andrea Haase
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany.
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Shepherd TJ, Dirks W, Roberts NMW, Patel JG, Hodgson S, Pless-Mulloli T, Walton P, Parrish RR. Tracing fetal and childhood exposure to lead using isotope analysis of deciduous teeth. Environ Res 2016; 146:145-153. [PMID: 26752082 DOI: 10.1016/j.envres.2015.12.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 12/11/2015] [Accepted: 12/15/2015] [Indexed: 06/05/2023]
Abstract
We report progress in using the isotopic composition and concentration of Pb in the dentine and enamel of deciduous teeth to provide a high resolution time frame of exposure to Pb during fetal development and early childhood. Isotope measurements (total Pb and (208)Pb/(206)Pb, (207)Pb/(206)Pb ratios) were acquired by laser ablation inductively coupled mass spectrometry at contiguous 100 micron intervals across thin sections of the teeth; from the outer enamel surface to the pulp cavity. Teeth samples (n=10) were selected from two cohorts of children, aged 5-8 years, living in NE England. By integrating the isotope data with histological analysis of the teeth, using the daily incremental lines in dentine, we were able to assign true estimated ages to each ablation point (first 2-3 years for molars, first 1-2 years for incisors+pre-natal growth). Significant differences were observed in the isotope composition and concentration of Pb between children, reflecting differences in the timing and sources of exposure during early childhood. Those born in 2000, after the withdrawal of leaded petrol in 1999, have the lowest dentine Pb levels (<0.2µgPb/g) with (208)Pb/(206)Pb (mean ±2σ: 2.126-2.079) (208)Pb/(206)Pb (mean ±2σ: 0.879-0.856) ratios that correlate very closely with modern day Western European industrial aerosols (PM10, PM2.5) suggesting that diffuse airborne pollution was probably the primary source and exposure pathway. Legacy lead, if present, is insignificant. For those born in 1997, dentine lead levels are typically higher (>0.4µgPb/g) with (208)Pb/(206)Pb (mean ±2σ: 2.145-2.117) (208)Pb/(206)Pb (mean ±2σ: 0.898-0.882) ratios that can be modelled as a binary mix between industrial aerosols and leaded petrol emissions. Short duration, high intensity exposure events (1-2 months) were readily identified, together with evidence that dentine provides a good proxy for childhood changes in the isotope composition of blood Pb. Our pilot study confirms that laser ablation Pb isotope analysis of deciduous teeth, when carried out in conjunction with histological analysis, permits a reconstruction of the timing, duration and source of exposure to Pb during early childhood. With further development, this approach has the potential to study larger cohorts and appraise environments where the levels of exposure to Pb are much higher.
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Affiliation(s)
- Thomas J Shepherd
- Centre for Oral Health Research, School of Dental Sciences, Newcastle University, Newcastle upon Tyne, UK; British Geological Survey, Keyworth, Nottingham, UK
| | - Wendy Dirks
- Department of Anthropology, Durham University, Durham, UK
| | - Nick M W Roberts
- NERC Isotope Geosciences Laboratory, British Geological Survey, Nottingham, UK
| | | | - Susan Hodgson
- MRC-PHE Centre for Environment and Health, Department of Epidemiology and Biostatistics, Imperial College London, UK
| | - Tanja Pless-Mulloli
- Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK
| | - Pamela Walton
- Centre for Oral Health Research, School of Dental Sciences, Newcastle University, Newcastle upon Tyne, UK
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