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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: Kim, Yeon-hee, Ra, Wook-jin, Cho, Solyi, Choi, Shinai, Soh, Bokyung, Joo, Yongsung, Lee, Kwang-Won
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8588170/
https://www.ncbi.nlm.nih.gov/pubmed/34771138
http://dx.doi.org/10.3390/molecules26216729
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author Kim, Yeon-hee
Ra, Wook-jin
Cho, Solyi
Choi, Shinai
Soh, Bokyung
Joo, Yongsung
Lee, Kwang-Won
author_facet Kim, Yeon-hee
Ra, Wook-jin
Cho, Solyi
Choi, Shinai
Soh, Bokyung
Joo, Yongsung
Lee, Kwang-Won
author_sort Kim, Yeon-hee
collection PubMed
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(2)) was above 0.999, and the method limit of detection (MLOD) was 0.0070–0.0498 μg kg(−1), 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(−1) 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.
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spelling pubmed-85881702021-11-13 Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea Kim, Yeon-hee Ra, Wook-jin Cho, Solyi Choi, Shinai Soh, Bokyung Joo, Yongsung Lee, Kwang-Won Molecules Article 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(2)) was above 0.999, and the method limit of detection (MLOD) was 0.0070–0.0498 μg kg(−1), 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(−1) 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. MDPI 2021-11-06 /pmc/articles/PMC8588170/ /pubmed/34771138 http://dx.doi.org/10.3390/molecules26216729 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kim, Yeon-hee
Ra, Wook-jin
Cho, Solyi
Choi, Shinai
Soh, Bokyung
Joo, Yongsung
Lee, Kwang-Won
Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South Korea
title 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_short 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
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8588170/
https://www.ncbi.nlm.nih.gov/pubmed/34771138
http://dx.doi.org/10.3390/molecules26216729
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