Reliable Ultra Trace Analysis of Cd, U and Zn Concentrations in Greenland Snow and Ice by Using Ultraclean Methods for Contamination Control
This study presents ultraclean procedures used in the challenging task of determining trace elements at or below the pg/g concentration level encountered in Greenland snow and ice. In order to validate these ultraclean procedures, recent snowfall and Holocene ice from northwest Greenland were analyz...
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ftpubmed:oai:pubmedcentral.nih.gov:7321221 2023-05-15T16:26:02+02:00 Reliable Ultra Trace Analysis of Cd, U and Zn Concentrations in Greenland Snow and Ice by Using Ultraclean Methods for Contamination Control Han, Changhee Hwang, Heejin Kang, Jung-Ho Hong, Sang-Bum Han, Yeongcheol Lee, Khanghyun Hur, Soon Do Hong, Sungmin 2020-05-28 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7321221/ http://www.ncbi.nlm.nih.gov/pubmed/32481633 https://doi.org/10.3390/molecules25112519 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7321221/ http://www.ncbi.nlm.nih.gov/pubmed/32481633 http://dx.doi.org/10.3390/molecules25112519 © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). CC-BY Molecules Article Text 2020 ftpubmed https://doi.org/10.3390/molecules25112519 2020-07-12T00:21:29Z This study presents ultraclean procedures used in the challenging task of determining trace elements at or below the pg/g concentration level encountered in Greenland snow and ice. In order to validate these ultraclean procedures, recent snowfall and Holocene ice from northwest Greenland were analyzed for Cd, U, and Zn concentrations. The total procedural blanks brought through the entire measurement procedure proved to be negligible, compared to trace element concentrations, measured in snow and ice samples. This validates the overall practicality of the proposed ultraclean procedures, thereby ensuring the reliable measurements of ultra-trace analysis. A comparison between our study and published data shows that improper procedures employed throughout all stages, from field sampling to analysis to elevate the concentrations by several orders of magnitude, relative to the reliable concentration ranges. The risk of contamination exposure for selected trace elements appears to increase in the order of U < As ≤ Pb < Cd < Zn. Reliable measurements of Cd, U, and Zn concentrations in snow and ice allowed us to interpret the data in terms of seasonal variations in the inputs of crustal and anthropogenic sources to Greenland ice sheet. Text Greenland Ice Sheet PubMed Central (PMC) Greenland Molecules 25 11 2519 |
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Article Han, Changhee Hwang, Heejin Kang, Jung-Ho Hong, Sang-Bum Han, Yeongcheol Lee, Khanghyun Hur, Soon Do Hong, Sungmin Reliable Ultra Trace Analysis of Cd, U and Zn Concentrations in Greenland Snow and Ice by Using Ultraclean Methods for Contamination Control |
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description |
This study presents ultraclean procedures used in the challenging task of determining trace elements at or below the pg/g concentration level encountered in Greenland snow and ice. In order to validate these ultraclean procedures, recent snowfall and Holocene ice from northwest Greenland were analyzed for Cd, U, and Zn concentrations. The total procedural blanks brought through the entire measurement procedure proved to be negligible, compared to trace element concentrations, measured in snow and ice samples. This validates the overall practicality of the proposed ultraclean procedures, thereby ensuring the reliable measurements of ultra-trace analysis. A comparison between our study and published data shows that improper procedures employed throughout all stages, from field sampling to analysis to elevate the concentrations by several orders of magnitude, relative to the reliable concentration ranges. The risk of contamination exposure for selected trace elements appears to increase in the order of U < As ≤ Pb < Cd < Zn. Reliable measurements of Cd, U, and Zn concentrations in snow and ice allowed us to interpret the data in terms of seasonal variations in the inputs of crustal and anthropogenic sources to Greenland ice sheet. |
format |
Text |
author |
Han, Changhee Hwang, Heejin Kang, Jung-Ho Hong, Sang-Bum Han, Yeongcheol Lee, Khanghyun Hur, Soon Do Hong, Sungmin |
author_facet |
Han, Changhee Hwang, Heejin Kang, Jung-Ho Hong, Sang-Bum Han, Yeongcheol Lee, Khanghyun Hur, Soon Do Hong, Sungmin |
author_sort |
Han, Changhee |
title |
Reliable Ultra Trace Analysis of Cd, U and Zn Concentrations in Greenland Snow and Ice by Using Ultraclean Methods for Contamination Control |
title_short |
Reliable Ultra Trace Analysis of Cd, U and Zn Concentrations in Greenland Snow and Ice by Using Ultraclean Methods for Contamination Control |
title_full |
Reliable Ultra Trace Analysis of Cd, U and Zn Concentrations in Greenland Snow and Ice by Using Ultraclean Methods for Contamination Control |
title_fullStr |
Reliable Ultra Trace Analysis of Cd, U and Zn Concentrations in Greenland Snow and Ice by Using Ultraclean Methods for Contamination Control |
title_full_unstemmed |
Reliable Ultra Trace Analysis of Cd, U and Zn Concentrations in Greenland Snow and Ice by Using Ultraclean Methods for Contamination Control |
title_sort |
reliable ultra trace analysis of cd, u and zn concentrations in greenland snow and ice by using ultraclean methods for contamination control |
publisher |
MDPI |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7321221/ http://www.ncbi.nlm.nih.gov/pubmed/32481633 https://doi.org/10.3390/molecules25112519 |
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Greenland |
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Greenland |
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Greenland Ice Sheet |
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Greenland Ice Sheet |
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Molecules |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7321221/ http://www.ncbi.nlm.nih.gov/pubmed/32481633 http://dx.doi.org/10.3390/molecules25112519 |
op_rights |
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
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https://doi.org/10.3390/molecules25112519 |
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Molecules |
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