Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea

Thallium (Tl) is a rare element and one of the most harmful metals. This study validated an analytical method for determining Tl in foods by inductively coupled plasma mass spectrometry (ICP-MS) based on food matrices and calories. For six representative foods, the method’s correlation coefficient (...

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Autores principales: Yeon-hee Kim, Wook-jin Ra, Solyi Cho, Shinai Choi, Bokyung Soh, Yongsung Joo, Kwang-Won Lee
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/4e6102ad9dbb4513b675e9e3b06fcc7e
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spelling oai:doaj.org-article:4e6102ad9dbb4513b675e9e3b06fcc7e2021-11-11T18:40:00ZMethod Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea10.3390/molecules262167291420-3049https://doaj.org/article/4e6102ad9dbb4513b675e9e3b06fcc7e2021-11-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/21/6729https://doaj.org/toc/1420-3049Thallium (Tl) is a rare element and one of the most harmful metals. This study validated an analytical method for determining Tl in foods by inductively coupled plasma mass spectrometry (ICP-MS) based on food matrices and calories. For six representative foods, the method’s correlation coefficient (R<sup>2</sup>) was above 0.999, and the method limit of detection (MLOD) was 0.0070–0.0498 μg kg<sup>−1</sup>, with accuracy ranging from 82.06% to 119.81% and precision within 10%. We investigated 304 various foods in the South Korean market, including agricultural, fishery, livestock, and processed foods. Tl above the MLOD level was detected in 148 samples and was less than 10 μg kg<sup>−1</sup> in 98% of the samples. Comparing the Tl concentrations among food groups revealed that fisheries and animal products had higher Tl contents than cereals and vegetables. Tl exposure via food intake did not exceed the health guidance level.Yeon-hee KimWook-jin RaSolyi ChoShinai ChoiBokyung SohYongsung JooKwang-Won LeeMDPI AGarticlethalliumtrace elementfood contaminationrisk assessmentICP-MSOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6729, p 6729 (2021)
institution DOAJ
collection DOAJ
language EN
topic thallium
trace element
food contamination
risk assessment
ICP-MS
Organic chemistry
QD241-441
spellingShingle thallium
trace element
food contamination
risk assessment
ICP-MS
Organic chemistry
QD241-441
Yeon-hee Kim
Wook-jin Ra
Solyi Cho
Shinai Choi
Bokyung Soh
Yongsung Joo
Kwang-Won Lee
Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea
description Thallium (Tl) is a rare element and one of the most harmful metals. This study validated an analytical method for determining Tl in foods by inductively coupled plasma mass spectrometry (ICP-MS) based on food matrices and calories. For six representative foods, the method’s correlation coefficient (R<sup>2</sup>) was above 0.999, and the method limit of detection (MLOD) was 0.0070–0.0498 μg kg<sup>−1</sup>, with accuracy ranging from 82.06% to 119.81% and precision within 10%. We investigated 304 various foods in the South Korean market, including agricultural, fishery, livestock, and processed foods. Tl above the MLOD level was detected in 148 samples and was less than 10 μg kg<sup>−1</sup> in 98% of the samples. Comparing the Tl concentrations among food groups revealed that fisheries and animal products had higher Tl contents than cereals and vegetables. Tl exposure via food intake did not exceed the health guidance level.
format article
author Yeon-hee Kim
Wook-jin Ra
Solyi Cho
Shinai Choi
Bokyung Soh
Yongsung Joo
Kwang-Won Lee
author_facet Yeon-hee Kim
Wook-jin Ra
Solyi Cho
Shinai Choi
Bokyung Soh
Yongsung Joo
Kwang-Won Lee
author_sort Yeon-hee Kim
title Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea
title_short Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea
title_full Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea
title_fullStr Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea
title_full_unstemmed Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea
title_sort method validation for determination of thallium by inductively coupled plasma mass spectrometry and monitoring of various foods in south korea
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/4e6102ad9dbb4513b675e9e3b06fcc7e
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