Trace element and mercury speciation analysis in yerba mate (Ilex paraguariensis)
Background: Yerba mate, a popular beverage in South America, is rich in bioactive compounds and minerals. However, yerba mate leaves may contain toxic metals and environmental contaminants. This study performed multi-element analyses using ICP-MS and ICP OES and mercury speciation by GC-CV-AFS and C...
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Elsevier
2025-06-01
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| Series: | Journal of Trace Elements and Minerals |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2773050625000084 |
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| author | María Victoria Panzl Jarol R. Miranda-Andrades Wendy J. Sandoval Rojano Joseane A. Mendes Tatiana D. Saint'Pierre Alejandra Rodríguez-Haralambides Ricardo Q. Aucelio |
| author_facet | María Victoria Panzl Jarol R. Miranda-Andrades Wendy J. Sandoval Rojano Joseane A. Mendes Tatiana D. Saint'Pierre Alejandra Rodríguez-Haralambides Ricardo Q. Aucelio |
| author_sort | María Victoria Panzl |
| collection | DOAJ |
| description | Background: Yerba mate, a popular beverage in South America, is rich in bioactive compounds and minerals. However, yerba mate leaves may contain toxic metals and environmental contaminants. This study performed multi-element analyses using ICP-MS and ICP OES and mercury speciation by GC-CV-AFS and CV–AAS to profile infusions of ten yerba mate samples consumed in Brazil and Uruguay. Materials and methods: For ICP OES and ICP-MS analyses, 500 mg infusions of samples were prepared and diluted with 10 % v/v HNO3. Ultrasonic-assisted extractions of mercurial species were made followed by distillation and dilution with water for CV-AAS. For GC-CV-AFS speciation, samples were extracted and distilled, using 200 μL aliquots for analysis. Results: The most abundant elements in the digested solid samples were K, Ca, and Mg, whereas in infusions the ranges were up to 9.18 mg g−1 for K, 0.68 mg g−1 for Ca, and 2.74 mg g−1 for Mg. Pb presented a mean concentration of 260 µg kg−1 in leaves but it was not found in infusions. Hg2+ was found from 0.67 to 0.96 μg kg−1 in leaves with one sample presenting 0.67 μg kg−1 of CH3Hg. Conclusion: K, Ca, and Mg were the most abundant elements in the yerba mate samples. Four samples showed ultra-trace concentrations of Hg2+ and one of CH3Hg. |
| format | Article |
| id | doaj-art-8e20af98cce64ab0a60f88e2857dfaa8 |
| institution | Kabale University |
| issn | 2773-0506 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Trace Elements and Minerals |
| spelling | doaj-art-8e20af98cce64ab0a60f88e2857dfaa82025-02-10T04:35:32ZengElsevierJournal of Trace Elements and Minerals2773-05062025-06-0112100217Trace element and mercury speciation analysis in yerba mate (Ilex paraguariensis)María Victoria Panzl0Jarol R. Miranda-Andrades1Wendy J. Sandoval Rojano2Joseane A. Mendes3Tatiana D. Saint'Pierre4Alejandra Rodríguez-Haralambides5Ricardo Q. Aucelio6Graduate Program in Chemistry, Facultad de Química, Universidad de la República, Uruguay; Bioanalytical Chemistry Laboratory, Instituto Polo Tecnológico de Pando, Facultad de Química, Universidad de la República, Pando 91000, UruguayChemistry Department, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ 22453-900, Brazil; Correspondent author.Chemistry Department, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ 22453-900, BrazilChemistry Department, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ 22453-900, BrazilChemistry Department, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ 22453-900, BrazilBioanalytical Chemistry Laboratory, Instituto Polo Tecnológico de Pando, Facultad de Química, Universidad de la República, Pando 91000, UruguayChemistry Department, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ 22453-900, BrazilBackground: Yerba mate, a popular beverage in South America, is rich in bioactive compounds and minerals. However, yerba mate leaves may contain toxic metals and environmental contaminants. This study performed multi-element analyses using ICP-MS and ICP OES and mercury speciation by GC-CV-AFS and CV–AAS to profile infusions of ten yerba mate samples consumed in Brazil and Uruguay. Materials and methods: For ICP OES and ICP-MS analyses, 500 mg infusions of samples were prepared and diluted with 10 % v/v HNO3. Ultrasonic-assisted extractions of mercurial species were made followed by distillation and dilution with water for CV-AAS. For GC-CV-AFS speciation, samples were extracted and distilled, using 200 μL aliquots for analysis. Results: The most abundant elements in the digested solid samples were K, Ca, and Mg, whereas in infusions the ranges were up to 9.18 mg g−1 for K, 0.68 mg g−1 for Ca, and 2.74 mg g−1 for Mg. Pb presented a mean concentration of 260 µg kg−1 in leaves but it was not found in infusions. Hg2+ was found from 0.67 to 0.96 μg kg−1 in leaves with one sample presenting 0.67 μg kg−1 of CH3Hg. Conclusion: K, Ca, and Mg were the most abundant elements in the yerba mate samples. Four samples showed ultra-trace concentrations of Hg2+ and one of CH3Hg.http://www.sciencedirect.com/science/article/pii/S2773050625000084Yerba mateSpeciation analysisEssential and toxic elementsCold vapor techniquesInductively coupled plasma mass spectrometryOptical emission |
| spellingShingle | María Victoria Panzl Jarol R. Miranda-Andrades Wendy J. Sandoval Rojano Joseane A. Mendes Tatiana D. Saint'Pierre Alejandra Rodríguez-Haralambides Ricardo Q. Aucelio Trace element and mercury speciation analysis in yerba mate (Ilex paraguariensis) Journal of Trace Elements and Minerals Yerba mate Speciation analysis Essential and toxic elements Cold vapor techniques Inductively coupled plasma mass spectrometry Optical emission |
| title | Trace element and mercury speciation analysis in yerba mate (Ilex paraguariensis) |
| title_full | Trace element and mercury speciation analysis in yerba mate (Ilex paraguariensis) |
| title_fullStr | Trace element and mercury speciation analysis in yerba mate (Ilex paraguariensis) |
| title_full_unstemmed | Trace element and mercury speciation analysis in yerba mate (Ilex paraguariensis) |
| title_short | Trace element and mercury speciation analysis in yerba mate (Ilex paraguariensis) |
| title_sort | trace element and mercury speciation analysis in yerba mate ilex paraguariensis |
| topic | Yerba mate Speciation analysis Essential and toxic elements Cold vapor techniques Inductively coupled plasma mass spectrometry Optical emission |
| url | http://www.sciencedirect.com/science/article/pii/S2773050625000084 |
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