Výsledky vyhledávání - "Wladiana O. Matos"

Akademický článek

TREATMENT OF WASTE FROM ATOMIC EMISSION SPECTROMETRIC TECHNIQUES AND REUSE IN UNDERGRADUATE LAB CLASSES FOR QUALITATIVE ANALYSIS

Autor: Francisco L. F. da Silva, Thalita O. A. Duarte, Allan N. S. Dantas, Gisele S. Lopes, Sandro T. Gouveia, Wladiana O. Matos

Publikováno v: Química Nova, Vol 38, Iss 9, Pp 1247-1252 (2015)

Flame atomic absorption spectrometry (FAAS) and inductively coupled plasma optical emission spectrometry (ICP OES) are widely used in academic institutions and laboratories for quality control to analyze inorganic elements in samples. However, these

Externí odkaz: https://doaj.org/article/926de3ac548c499fa5f13bb4ccaaa5ae

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A fast and low-cost approach to quality control of alcohol-based hand sanitizer using a portable near infrared spectrometer and chemometrics

Autor: Gisele S. Lopes, Lívia Pd Ribeiro, Adenilton Camilo da Silva, Wladiana O. Matos, Ruth Mb Vidal

Publikováno v: Journal of Near Infrared Spectroscopy. 29:119-127

The use of alcohol-based hand sanitizers is recommended as one of several strategies to minimize contamination and spread of the COVID-19 disease. Current reports suggest that the virucidal potential of ethanol occurs at concentrations close to 70%.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e078e9ef66d701f60bcceae9ed66a34
https://doi.org/10.1177/0967033520987315

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Selenium content and physicochemical characterization of traditional Brazilian coalho cheese

Autor: Wladiana O. Matos, Gisele S. Lopes, Kaluce Gonçalves de Sousa Almondes, Jéssica Gadelha Reges, Francisco L.F. da Silva, Renata Carmo de Assis, Carla Soraya Costa Maia, Priscila Pereira Pessoa

Publikováno v: Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences. 16:1-8

Studies of centesimal composition regarding coalho. From the perspective that selenium content in foods can vary due to environmental factors and cheese may be a source of such nutrient, it is believed that is relevant to characterize the possible se

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::288815cad8ecd64e50c0a136dd04389e
https://doi.org/10.5039/agraria.v16i1a8860

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Wild shrimp have an order of magnitude higher arsenic concentrations than farmed shrimp from Brazil illustrating the need for a regulation based on inorganic arsenic

Autor: Wladiana O. Matos, Francisco L.F. da Silva, Savarin Sinaviwat, Emma J. Menzies, Andrea Raab, Eva M. Krupp, Joerg Feldmann

Publikováno v: Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS). 71

Shrimp is a worldwide food commodity, it is a source of several nutrients and vitamins; however, this food is one of the major sources of arsenic for humans. Legislation around the world set limits for the concentration of this element in crustaceans

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d652dadaa4455b7d83a74642e254ab12
https://pubmed.ncbi.nlm.nih.gov/35259617

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Infrared radiation as a heat source in sample preparation of shrimp for trace element analysis

Autor: Victor M. Campos, Wladiana O. Matos, Lívia Paulia Dias Ribeiro, Francisco L.F. da Silva, Gisele S. Lopes, Sandro T. Gouveia, João P.S. Oliveira

Publikováno v: Journal of Food Composition and Analysis. 79:107-113

An open sample preparation system based on use of infrared radiation (IR) for heating was used to accelerate the mineralization of shrimp samples to quantify their As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Se, Sn and V content by ICP-OES. The method presen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ef6b05148c4c17fdd9e663d51b927fd
https://doi.org/10.1016/j.jfca.2019.03.014

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Optimization of the ICP OES Operational Parameters for Determination of Metals in Heavy Crude Oil after Microwave Digestion

Autor: Francisco L.F. da Silva, Wladiana O. Matos, Rafael de Queiroz Ferreira, Murilo de Oliveira Souza

Publikováno v: Revista Virtual de Química. 9:1658-1671

O objetivo deste estudo foi avaliar as melhores condicoes operacionais do ICP OES para a determinacao de Na, Ca, Mg, Sr e Fe em amostras de petroleo pesado (baixo grau API) apos digestao acida assistida por micro-ondas. Assim, o planejamento fatorial

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4567ea64929c041d75c5cd8fdca11246
https://doi.org/10.21577/1984-6835.20170095

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Infrared Radiation Applied as a Heating Source in Milk Sample Preparation for the Determination of Trace Elements by Inductively Coupled Plasma-Optical Emission Spectroscopy

Autor: Lívia Paulia Dias Ribeiro, Francisco L.F. da Silva, Wellington V. de Sousa, Gisele S. Lopes, Sandro T. Gouveia, Wladiana O. Matos

Publikováno v: Revista Virtual de Química. 9:2226-2236

0 0 1 140 799 Federal University of Ceara 6 1 938 14.0 96 800x600 Normal 0 false false false PT-BR JA X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f8821bfccb33e724f5a5c8ddfb83de7
https://doi.org/10.21577/1984-6835.20170132

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The concentration of polyphenolic compounds and trace elements in the Coffea arabica leaves: Potential chemometric pattern recognition of coffee leaf rust resistance

Autor: Francisco L.F. da Silva, Marcelo Ribeiro Malta, M. Teresa S. Trevisan, Gisele S. Lopes, Gilberto Rodrigues Liska, Gerlan Oliveira do Nascimento, Robert W. Owen, Wladiana O. Matos, Rodrigo Luz da Cunha

Publikováno v: Food research international (Ottawa, Ont.). 134

Coffee (Coffea arabica L.) is an important commodity, involving about 500 million people from the cultivation of the coffee trees to final consumption of infusions of the ground roasted coffee beans. In contrast to a considerable amount of research p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d0ee1f320baca8d08ba5ac6e0f3c980
https://pubmed.ncbi.nlm.nih.gov/32517933

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Inorganic content of rock dust waste from northwest of Rio de Janeiro, Brazil: do environmental risks incur from its use as natural fertilizer?

Autor: Francisco L.F. da Silva, Adriano Henrique Ferrarez, Hellen G. Vieira, Cibele Maria Stivanin de Almeida, Wladiana O. Matos, Camila V. G. Vitó, Murilo de Oliveira Souza

Publikováno v: Environmental monitoring and assessment. 192(6)

The ornamental rock exploration and coating industry has led to significant environmental impacts due to the inadequate manner in which these residues are released into the environment. This impact may be reduced by using these residues for soil enri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::373b177f31168550832f2a89b1fdc747
https://pubmed.ncbi.nlm.nih.gov/32430686

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Organophosphorus halloysite nanotubes as adsorbent for lead preconcentration in wine and grape juice

Autor: Laís Helena Sousa Vieira, Fernando Lima de Menezes, Lillian Maria Uchoa Dutra Fechine, Gisele S. Lopes, Odair Pastor Ferreira, Tiago M. Freire, Rafael M. Freire, Lauren L. Ramos, Pierre Basílio Almeida Fechine, Giovanna R. Cavalcante, Francisco L.F. da Silva, Juliano C. Denardin, Allan M. Santana, Wladiana O. Matos

Publikováno v: Applied Clay Science. 200:105912

Preconcentration of Pb(II) in grape-based beverages using organophosphate-functionalized halloysite nanotubes was investigated by flame atomic absorption spectroscopy (FAAS). For this proposal, a central composition design (CCD) was performed for an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c222f1b2a78bd943117b53039e4e49a
https://doi.org/10.1016/j.clay.2020.105912

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