Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry

Atmospheric iodine plays a relevant role in climate change. Bearing in mind that most of this iodine comes from the oceans, analytical methods capable of determining iodine in a challenging matrix as seawater are necessary. In this work, the first method capable of direct determination of total inor...

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Autores: Hernáiz-Izquierdo, M., Galindo-Iranzo, Plácido, García-Armada, M.P., Saiz-Lopez, A., Gómara, Belén, Quintanilla-López, Jesús Eduardo, Lebrón-Aguilar, Rosa
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/184158
Acceso en línea:http://hdl.handle.net/10261/184158
Access Level:acceso abierto
Palabra clave:Liquid chromatography-electrospray
Seawater
Mixed-mode stationary phase
IodideIodate
ionization-mass spectrometry
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spelling Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometryHernáiz-Izquierdo, M.Galindo-Iranzo, PlácidoGarcía-Armada, M.P.Saiz-Lopez, A.Gómara, BelénQuintanilla-López, Jesús EduardoLebrón-Aguilar, RosaLiquid chromatography-electrospraySeawaterMixed-mode stationary phaseIodideIodateionization-mass spectrometryAtmospheric iodine plays a relevant role in climate change. Bearing in mind that most of this iodine comes from the oceans, analytical methods capable of determining iodine in a challenging matrix as seawater are necessary. In this work, the first method capable of direct determination of total inorganic iodine in seawater at subnanomolar level based on mixed-mode liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS) without any sample treatment is presented. Analytical characteristics of the developed method were studied in terms of linear range, limits of detection and quantification, precision, trueness, matrix effect, and robustness. The detection limit for iodide was as low as 0.16 nM, injecting 5 μL of seawater without any sample treatment and the working linear range of four orders of magnitude was wide enough to cover the broad concentration range observed in seawater samples. Average values for repeatability and intermediate precision were 4.1% and 8.1%, respectively. The suitability of the method was demonstrated through its application to the analysis of several types of samples, including seawater samples taken at different locations along the Spanish Mediterranean coast and some domestic iodized salts. According to the results obtained, the method developed is rapid, easy to apply and to be automated, avoids sample treatment and requires only few microliters of sample. Furthermore, it has a low detection limit and allows the quantification of inorganic iodine over a wide concentration range.This work has been funded by Comunidad de Madrid (Spain)and European funding from the FEDER program (S2013/ABI-3028AVANSECAL-CM). Authors thank all the people who kindly col-lected the seawater samples.Peer ReviewedElsevierEuropean CommissionComunidad de MadridConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/184158reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#S2013/ABI-3028/AVANSECAL-CMhttp://dx.doi.org/10.1016/j.chroma.2018.12.046Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1841582026-05-22T06:33:51Z
dc.title.none.fl_str_mv Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry
title Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry
spellingShingle Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry
Hernáiz-Izquierdo, M.
Liquid chromatography-electrospray
Seawater
Mixed-mode stationary phase
IodideIodate
ionization-mass spectrometry
title_short Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry
title_full Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry
title_fullStr Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry
title_full_unstemmed Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry
title_sort Direct quantification of inorganic iodine in seawater by mixed-mode liquid chromatography-electrospray ionization-mass spectrometry
dc.creator.none.fl_str_mv Hernáiz-Izquierdo, M.
Galindo-Iranzo, Plácido
García-Armada, M.P.
Saiz-Lopez, A.
Gómara, Belén
Quintanilla-López, Jesús Eduardo
Lebrón-Aguilar, Rosa
author Hernáiz-Izquierdo, M.
author_facet Hernáiz-Izquierdo, M.
Galindo-Iranzo, Plácido
García-Armada, M.P.
Saiz-Lopez, A.
Gómara, Belén
Quintanilla-López, Jesús Eduardo
Lebrón-Aguilar, Rosa
author_role author
author2 Galindo-Iranzo, Plácido
García-Armada, M.P.
Saiz-Lopez, A.
Gómara, Belén
Quintanilla-López, Jesús Eduardo
Lebrón-Aguilar, Rosa
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Comunidad de Madrid
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Liquid chromatography-electrospray
Seawater
Mixed-mode stationary phase
IodideIodate
ionization-mass spectrometry
topic Liquid chromatography-electrospray
Seawater
Mixed-mode stationary phase
IodideIodate
ionization-mass spectrometry
description Atmospheric iodine plays a relevant role in climate change. Bearing in mind that most of this iodine comes from the oceans, analytical methods capable of determining iodine in a challenging matrix as seawater are necessary. In this work, the first method capable of direct determination of total inorganic iodine in seawater at subnanomolar level based on mixed-mode liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS) without any sample treatment is presented. Analytical characteristics of the developed method were studied in terms of linear range, limits of detection and quantification, precision, trueness, matrix effect, and robustness. The detection limit for iodide was as low as 0.16 nM, injecting 5 μL of seawater without any sample treatment and the working linear range of four orders of magnitude was wide enough to cover the broad concentration range observed in seawater samples. Average values for repeatability and intermediate precision were 4.1% and 8.1%, respectively. The suitability of the method was demonstrated through its application to the analysis of several types of samples, including seawater samples taken at different locations along the Spanish Mediterranean coast and some domestic iodized salts. According to the results obtained, the method developed is rapid, easy to apply and to be automated, avoids sample treatment and requires only few microliters of sample. Furthermore, it has a low detection limit and allows the quantification of inorganic iodine over a wide concentration range.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/184158
url http://hdl.handle.net/10261/184158
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
S2013/ABI-3028/AVANSECAL-CM
http://dx.doi.org/10.1016/j.chroma.2018.12.046
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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