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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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/21/6729 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:54:44Z |
| format | Article |
| id | doaj.art-4e6102ad9dbb4513b675e9e3b06fcc7e |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T05:54:44Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-4e6102ad9dbb4513b675e9e3b06fcc7e2023-11-22T21:25:41ZengMDPI AGMolecules1420-30492021-11-012621672910.3390/molecules26216729Method Validation for Determination of Thallium by Inductively Coupled Plasma Mass Spectrometry and Monitoring of Various Foods in South KoreaYeon-hee Kim0Wook-jin Ra1Solyi Cho2Shinai Choi3Bokyung Soh4Yongsung Joo5Kwang-Won Lee6Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, KoreaDepartment of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, KoreaAdvanced Food Safety Research Group, School of Food Science and Technology, Chung-Ang University, Anseong-si 17546, KoreaKnA Consulting, Yongin-si 16942, KoreaDepartment of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, KoreaDepartment of Statistics, Dongguk University-Seoul, Seoul 04620, KoreaDepartment of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, KoreaThallium (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.https://www.mdpi.com/1420-3049/26/21/6729thalliumtrace elementfood contaminationrisk assessmentICP-MS |
| spellingShingle | 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 Molecules thallium trace element food contamination risk assessment ICP-MS |
| 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 | thallium trace element food contamination risk assessment ICP-MS |
| url | https://www.mdpi.com/1420-3049/26/21/6729 |
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