Výsledky vyhledávání - "José Bento Borba da Silva"

Akademický článek

Solubilização alcalina de peixes e otimização multivariada para determinação de chumbo e manganês usando espectrometria de absorção atômica com forno de grafite

Autor: Luciano de Almeida Pereira, Cláudia Carvalhinho Windmöller, José Bento Borba da Silva, Waldomiro Borges Neto

Publikováno v: Química Nova, Vol 34, Iss 7, Pp 1167-1172 (2011)

This paper describes the development of methods for the determination of Pb and Mn in fishes by GF AAS after solubilization with tetramethylamonium hidroxide. The optimization of the operational conditions and the choice of modifier were made using m

Externí odkaz: https://doaj.org/article/3a7255e521e44f5e80219f99dd7e4921

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Cadmium, copper and lead levels in different cultivars of lettuce and soil from urban agriculture

Autor: Eliana Aparecida Nonato Knupp, José Bento Borba da Silva, Flávia Beatriz Custódio, Maria Beatriz Abreu Glória, Bruno M. Dala-Paula, Helena Eugênia Leonhardt Palmieri

Publikováno v: Environmental Pollution. 242:383-389

Urban agriculture plays an important role in sustainable food supply. However, because of the atmospheric pollution and soil contamination associated with urban areas, this activity may be of concern. In fact, contamination of soil with metals and th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::421392943d620d377720abafa5431de2
https://doi.org/10.1016/j.envpol.2018.04.101

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Determinação de cádmio em amostras de urina e soro humano por espectrometria de absorção atômica em forno de grafite usando irídio como modificador permanente

Autor: Daniel Andrada, U. V. Rey, Frederico Garcia Pinto, José Bento Borba da Silva, L. M. S. Ansaloni

Publikováno v: Eclética Química, Vol 30, Iss 4, Pp 59-65 (2018)
Eclética Química v.30 n.4 2005
Eclética Química
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron:UNESP

No presente estudo, foram investigadas diferentes substâncias para atuarem como modificadores químicos na determinação direta de cádmio em soro e urina humanos sem digestão prévia das amostras. A preparação da amostra foi feita diretamente n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c94833172cb87b66f0bb6c8731dec549
https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/482

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Suitable extraction of soils and sediments for mercury species and determination combined with the cold vapor generation atomic absorption spectrometry technique

Autor: José Bento Borba da Silva, Mônica D.R. Oliveira, Ione L. S. Almeida, Nívia M. M. Coelho

Publikováno v: Microchemical Journal. 124:326-330

This work reports a fast and efficient procedure for mercury species extraction using Universol® as extractor reagent in soil and sediment samples combined with the cold vapor generation atomic absorption spectrometry (CV AAS) technique. Hg total wa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29afbbaf8dafcc45c5845af2f6ba27e5
https://doi.org/10.1016/j.microc.2015.09.007

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Validation of Methods Employing Fast Alkaline Solubilization to Determine Cadmium in Fish Liver, Spleen, Gills and Muscle by Graphite Furnace Atomic Absorption Spectrometry

Autor: José Dias Corrêa Junior, José Bento Borba da Silva, Juliana M.M. Gomes, Claudio Luis Donnici

Publikováno v: Microchemical Journal. 124:629-636

The validations of analytical methods were performed to determine Cd in fish liver, spleen, gill, and muscle by graphite furnace atomic absorption spectrometry (GF AAS). The methods were based to alkaline solubilization of the samples with benzyltrim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97ba7e402600ed80f83b6cb54e8545cd
https://doi.org/10.1016/j.microc.2015.10.006

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Use of fast alkaline solubilisation to determine copper in bovine liver, fish tissues (salmon), and rolled oats by graphite furnace atomic absorption spectrometry using aqueous calibration

Autor: Claudio Luis Donnici, Juliana M.M. Gomes, José Dias Corrêa-Junior, Weverson A. Ferreira, Karla Silva Ferreira, José Bento Borba da Silva

Publikováno v: Microchemical Journal. 124:350-355

In this work, efficient methods to determine Cu in bovine liver, fish tissue, and rolled oats by graphite furnace atomic absorption spectrometry (GF AAS), after fast alkaline solubilisation of the samples with Universol® (a new reagent for sample so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5f2fadff496ecb84a8aa4968ed061a6e
https://doi.org/10.1016/j.microc.2015.09.009

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Use of Multivariate Optimization to Develop Methods for Direct Copper and Lead Determination in Breast Milk by Graphite Furnace Atomic Absorption Spectrometry

Autor: Waldomiro Borges Neto, Paulo Celso Pereira Lara, Josianne Nicácio Silveira, José Bento Borba da Silva, Mark A. Beinner

Publikováno v: Food Analytical Methods. 7:790-797

A direct method for lead and copper determination in breast milk by graphite furnace atomic absorption spectrometry, using aqueous calibration, was proposed in this study. Samples were diluted with hydroximethylaminomethane 80 % v/v, pH 8. The diluti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d099334a7864d948477fd45463e3f891
https://doi.org/10.1007/s12161-013-9682-9

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