Iodine soil dynamics and methods of measurement: a review

Iodine is an essential micronutrient for human health: insufficient intake can have multiple effects on development and growth, affecting approximately 1.9 billion people worldwide. Previous reviews have focussed on iodine analysis in environmental and biological samples, however, no such review exi...

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Main Authors: Humphrey, O.S., Young, S.D., Bailey, E.H., Crout, N.M.J., Ander, E.L., Watts, M.J.
Format: Article
Published: Royal Society of Chemistry 2018
Online Access:https://eprints.nottingham.ac.uk/51059/
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author Humphrey, O.S.
Young, S.D.
Bailey, E.H.
Crout, N.M.J.
Ander, E.L.
Watts, M.J.
author_facet Humphrey, O.S.
Young, S.D.
Bailey, E.H.
Crout, N.M.J.
Ander, E.L.
Watts, M.J.
author_sort Humphrey, O.S.
building Nottingham Research Data Repository
collection Online Access
description Iodine is an essential micronutrient for human health: insufficient intake can have multiple effects on development and growth, affecting approximately 1.9 billion people worldwide. Previous reviews have focussed on iodine analysis in environmental and biological samples, however, no such review exists for the determination of iodine fractionation and speciation in soils. This article reviews the geodynamics of both stable 127I and the long-lived isotope 129I (t1/2 ¼ 15.7 million years), alongside the analytical methods for determining iodine concentrations in soils, including consideration of sample preparation. The ability to measure total iodine concentration in soils has developed significantly from rudimentary spectrophotometric analysis methods to inductively coupled plasma mass spectrometry (ICP-MS). Analysis with ICP-MS has been reported as the best method for determining iodine concentrations in a range of environmental samples and soils due to developments in extraction procedures and sensitivity, with extremely good detection limits typically <mg L_1. The ability of ICP-MS to measure iodine and its capabilities to couple on-line separation tools has the significance to develop the understanding of iodine geodynamics. In addition, nuclear-related analysis and recent synchrotron light source analysis are discussed.
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spelling nottingham-510592024-08-15T15:27:00Z https://eprints.nottingham.ac.uk/51059/ Iodine soil dynamics and methods of measurement: a review Humphrey, O.S. Young, S.D. Bailey, E.H. Crout, N.M.J. Ander, E.L. Watts, M.J. Iodine is an essential micronutrient for human health: insufficient intake can have multiple effects on development and growth, affecting approximately 1.9 billion people worldwide. Previous reviews have focussed on iodine analysis in environmental and biological samples, however, no such review exists for the determination of iodine fractionation and speciation in soils. This article reviews the geodynamics of both stable 127I and the long-lived isotope 129I (t1/2 ¼ 15.7 million years), alongside the analytical methods for determining iodine concentrations in soils, including consideration of sample preparation. The ability to measure total iodine concentration in soils has developed significantly from rudimentary spectrophotometric analysis methods to inductively coupled plasma mass spectrometry (ICP-MS). Analysis with ICP-MS has been reported as the best method for determining iodine concentrations in a range of environmental samples and soils due to developments in extraction procedures and sensitivity, with extremely good detection limits typically <mg L_1. The ability of ICP-MS to measure iodine and its capabilities to couple on-line separation tools has the significance to develop the understanding of iodine geodynamics. In addition, nuclear-related analysis and recent synchrotron light source analysis are discussed. Royal Society of Chemistry 2018-02-28 Article PeerReviewed Humphrey, O.S., Young, S.D., Bailey, E.H., Crout, N.M.J., Ander, E.L. and Watts, M.J. (2018) Iodine soil dynamics and methods of measurement: a review. Environmental Science: Processes & Impacts, 20 (2). pp. 288-310. ISSN 2050-7887 http://pubs.rsc.org/en/Content/ArticleLanding/2018/EM/C7EM00491E#!divAbstract doi:10.1039/c7em00491e doi:10.1039/c7em00491e
spellingShingle Humphrey, O.S.
Young, S.D.
Bailey, E.H.
Crout, N.M.J.
Ander, E.L.
Watts, M.J.
Iodine soil dynamics and methods of measurement: a review
title Iodine soil dynamics and methods of measurement: a review
title_full Iodine soil dynamics and methods of measurement: a review
title_fullStr Iodine soil dynamics and methods of measurement: a review
title_full_unstemmed Iodine soil dynamics and methods of measurement: a review
title_short Iodine soil dynamics and methods of measurement: a review
title_sort iodine soil dynamics and methods of measurement: a review
url https://eprints.nottingham.ac.uk/51059/
https://eprints.nottingham.ac.uk/51059/
https://eprints.nottingham.ac.uk/51059/