Development of an Alkaline Method for the Determination of Cu, Mo, and Zn in Beef Samples

Iaquinta, Fiorella; Tissot, Florencia; Fialho, Lucimar L.; Nóbrega, Joaquim A.; Pistón, Mariela; Machado, Ignacio

doi:10.1007/s12161-020-01861-w

Cited by 9 publications

(6 citation statements)

References 22 publications

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“…Results obtained with a conventional introduction system after MAD with HNO 3 and H 2 O 2 were presented, and a visual inspection suggests that they were not significantly different from those obtained by alkali digestion and ETV introduction. A similar protocol was followed 44 for the determination of Cu, Mo, and Zn in beef. To 0.25 g sample were added 5.0 mL of H 2 O and 1.5 mL 25% (w/w) TMAH followed by heating at 85 °C for 60 min, cooling and centrifuging.…”

Section: Sample Collection and Preparationmentioning

confidence: 99%

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

Patriarca

Barlow

Cross³

et al. 2022

J. Anal. At. Spectrom.

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Section: Sample Collection and Preparationmentioning

confidence: 99%

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

Patriarca

Barlow

Cross³

et al. 2022

J. Anal. At. Spectrom.

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“…Maximum pressure was set at 120 bar. After cooling down to 60 °C the chamber was depressurized, and digests were diluted with deionized water up to 10.0 mL [1].…”

Section: Sample Preparationmentioning

confidence: 99%

“…No gas mode means not using the collision cell, and He mode means when the collision cell is pressurized with Helium gas (99.999%, White Martins-Praxair, Sertãozinho, SP, Brazil). HMI mode implies the aerosol dilution with argon at a gas flow rate of 0.62 L min −1 and carrier gas flow rate of 0.40 L min −1 , thus 1.02 L min −1 of total flow rate [1]. Argon (99.999%, White Martins-Praxair, Sertãozinho, SP, Brazil) was used in this equipment.…”

Section: Analytical Determinationsmentioning

confidence: 99%

“…Beef is recognized as an important source of proteins with high biological value, that provides the essential amino acids required for the proper maintenance of vital functions. It is also a good source of micronutrients such as vitamins, minerals, and trace elements, often limiting in the diet [1]. The matrix is composed of water, fats, fatty acids, and small amounts of carbohydrates.…”

Section: Introductionmentioning

confidence: 99%

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Determination of Cd, Pb and Se in beef samples using aerosol dilution by ICP-MS

et al. 2021

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An analytical method for sample preparation and subsequent determination of Cd, Pb and Se in beef using aerosol dilution by inductively coupled plasma-mass spectrometry was developed. The use of high matrix introduction technology allowed the introduction of a complex sample into the plasma with higher content of total dissolved solids a residual acidity of 4% and better tolerance to matrix effects. Trueness was verified by the analysis of two reference materials. At the 95% significance level, results were statistically equivalent to the certified or informed values. Analytical precision expressed as relative standard deviation was less than 9% in all cases. After validation, a total of 12 beef samples from Uruguay were analyzed. Obtained levels for Cd and Pb were far below the maximum limits established by international regulations in all samples. Also, results showed that beef from this region is a good source of Se in the range 0.120-0.870 mg kg −1 with an interesting contribution to the daily intake of this essential element.

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“…Um reagente alcalino interessante e que foi utilizado é o hidróxido de tetrametilamômio (TMAH), o qual tem sido bastante utilizado para solubilização total ou parcial de diferentes amostras (Katrin et al, 2014;Aranha et al, 2016;Iaquinta et al, 2020). O TMAH promove a solubilização da amostra com consequente extração de elementos metálicos de matrizes contendo alto teor de proteína, como é o caso do queijo.…”

Section: Introductionunclassified

Ácidos Graxos Vegetais: Composição Química, Atividade Biológica E Potencial Biotecnológico

Santos¹,

Lima²,

Castro³

2021

Trabalhos Nas Áreas De Fronteira Da Química 2

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica. A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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Development of an Alkaline Method for the Determination of Cu, Mo, and Zn in Beef Samples

Cited by 9 publications

References 22 publications

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

Determination of Cd, Pb and Se in beef samples using aerosol dilution by ICP-MS

Ácidos Graxos Vegetais: Composição Química, Atividade Biológica E Potencial Biotecnológico

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