Search Results - "Oliveira, Cláudio C."

Microwave assisted biocidal extraction is an alternative method to measure microbial biomass of carbon from cultivated and non-cultivated soils by Bertozzi, Janksyn, Andrade, Diva S., Oliveira, Cláudio C., Bala, Abdullahi, Caviglione, João Henrique

“…Developing simple and cost-effective methods for soil microbial biomass carbon (MBC) measurement eases routine laboratory analysis and enables large numbers of…”
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Development of a green chromatographic method for determination of colorants in food samples by Vidotti, Eliane C., Costa, Willian F., Oliveira, Cláudio C.

“…A green chromatographic analytical method for determination of Tartrazine, Brilliant Blue and Sunset Yellow in food samples is proposed. The method is based on…”
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Comparative analysis of eight esterification methods in the quantitative determination of vegetable oil fatty acid methyl esters (FAME) by Milinsk, Maria Cristina, Matsushita, Makoto, Visentainer, Jesuí V., Oliveira, Cláudio C. de, Souza, Nilson E. de

“…The results of the quantitative determination of fatty acid methyl esters of vegetable oils, (soybean, flaxseed, and palm oils) by eight basic and acid…”
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Exploiting the bead injection concept for sequential determination of copper and mercury ions in river-water samples by Vidotti, Eliane C., Almeida, Vitor C., Oliveira, Cláudio C.

“…A procedure involving bead-injection concept and sequential determination of copper and mercury ions in river-water samples is proposed. The method is based on…”
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Development of an analytical method for identification of Aspergillus flavus based on chemical markers using HPLC-MS by Saldan, Nayara C., Almeida, Rafaela T.R., Avíncola, Alexandre, Porto, Carla, Galuch, Marília B., Magon, Thiago F.S., Pilau, Eduardo J., Svidzinski, Terezinha I.E., Oliveira, Claudio C.

“…•New method to Aspergillus flavus identification in foods by HPLC-MS.•The method decreases the time of analysis from 15days to few hours.•The method is…”
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Spectrophotometric Determination of Blue Procion HEGN in Effluents of Textile Industry Exploiting the Dye Aggregation Effect and Flow Injection Analysis by ALMEIDA, Vitor C., COSTA, Willian F., NOZAKI, Jorge, OLIVEIRA, Cláudio C.

“…A new spectrophotometric method involving flow injection analysis and textile dye aggregation effect is proposed. The method is based on the aggregation effect…”
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Micellar Electrokinetic Chromatography Method for Determination of the Ten Water-Soluble Vitamins in Food Supplements by da Silva, Danielle C., Visentainer, Jesuí V., de Souza, Nilson E., Oliveira, Cláudio C.

“…The separation and determination of the ten water-soluble vitamins by using capillary electrophoresis in the micellar electrokinetic chromatography in a single…”
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Toxicity assessment from electro-coagulation treated-textile dye wastewaters by bioassays by Palácio, Soraya M., Espinoza-Quiñones, Fernando R., Módenes, Aparecido N., Oliveira, Cláudio C., Borba, Fernando H., Silva, Fernando G.

“…In this study the pollutant removal from a textile dyeing wastewater has been investigated by using the electro-coagulation technique with iron electrodes. In…”
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Bead-injection Determination of Total Mercury in River Water Samples by SARTINI, Raquel P., VIDOTTI, Eliane C., OLIVEIRA, Cláudio C.

“…A bead-injection system is proposed for total mercury determination in river-water samples. The procedure is based on the introduction of a defined quantity of…”
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Microwave-assisted sample preparation in sequential injection: spectrophotometric determination of magnesium, calcium and iron in food by Oliveira, Cláudio C, Sartini, Raquel P, Zagatto, Elias Ayres Guidetti

“…A sequential injection system for spectrophotometric analysis of foods and similar involving direct sample introduction as a natural suspension or as slurry is…”
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Fast Triacylglycerol Screening and Semi-Quantitative Analysis of Fatty Acids in Commercial Oils by DIMS with 18-Crown-6 Ether/Trifluoracetic Acid Dopants by Tonin, Angelica, Ribeiro, Marcos, Poliseli, Camila, da Silveira, Roberta, Visentainer, Jesuí, Silva, Valquíria, Ribeiro, Leomara, de Souza, Rodrigo, de Oliveira, Cláudio, Meurer, Eduardo

“…Vegetable oil analyses, especially due to the complexity of the oil components, are commonly laborious, requiring several analytical techniques. In this work,…”
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A New Strategy for Exploiting Ion Exchange in Sequential Injection Analysis: In-Line Phytic Acid Separation/Determination in Foods as an Example by SARTINI, Raquel P., OLIVEIRA, Cláudio C.

“…A novel strategy for exploiting ion exchange in sequential injection systems is proposed. The procedure is based on the selection of a defined volume of a…”
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Development of a green chromatographic method for determination of fat-soluble vitamins in food and pharmaceutical supplement by Kienen, Vanessa, Costa, Willian F., Visentainer, Jesuí V., Souza, Nilson E., Oliveira, Cláudio C.

“…A green chromatographic analytical method for determination of fat-soluble vitamins (A, E, D 3 and K 1) in food and pharmaceutical supplement samples is…”
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Mathematical Modelling for the Adsorption Process of CO2 in Nanopores of Catalytic Particles in a Fixed Bed Reactor Using Numeral Inverse Laplace Transform by J.D Silva, C.C. Oliveira

“…Theoretical analysis on the CO2 adsorption on NaX has been carried out in fixed bed reactor. In the proposed process, CO2 was passed through a stationary…”
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Dynamic Modelling of the Gasification Region of a Bubbling Fluidized Bed Gasifier by C. Oliveira, J.D. da Silva

“…This paper focuses on the dynamic mathematical model using algorithm of Runge-Kutta method Gill’s method in predicting the process variables (temperatures and…”
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Determination of reducing sugars by flow injection gravimetry by Sartini, Raquel P, Oliveira, Cláudio C, Zagatto, Elias A.G, Bergamin Filho, H

“…A flow injection procedure for gravimetric determination of reducing sugars was developed. The system was designed to permit the monitoring of an in-line…”
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Quantification of essential fatty acids in the heads of nile tilapia (Oreochromis niloticus) fed with linseed oil by Aguiar, Ana C., Cottica, Solange M., Boroski, Marcela, Oliveira, Cláudio C., Bonafé, Elton G., França, Polyana B., Souza, Nilson E., Visentainer, Jesui V.

“…The objective of this study was to examine the effects of linseed oil on n-6 and n-3 polyunsaturated (PUFA) fatty acid content in the heads of Nile tilapia…”
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Development of a green microwave assisted extraction method for triazine herbicides determination in soil samples by Silva, Valquíria M., Costa, Willian F., Visentainer, Jesuí V., Souza, Nilson E., Oliveira, Cláudio C.

“…It was developed a green microwave-assisted extraction method for determination of triazine herbicides in soil samples. The extraction strategy was based on…”
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Determination of Vitamins A and E Exploiting Cloud Point Extraction and Micellar Liquid Chromatography by Ortega, Ana Claudia, da Silva, Danielle Cristina, Visentainer, Jesuí V., de Souza, Nilson Evelázio, de Cinque Almeida, Vitor, Oliveira, Cláudio C.

“…Cloud point extraction and micellar chromatographic methods were developed for determination of vitamins A and E. The stationary phase was C18 and the mobile…”
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Simultaneous Determination of the Textile Dyes in Industrial Effluents by First-Order Derivative Spectrophotometry by ALMEIDA, Vitor C., VARGAS, Alexandro M. M., GARCIA, Juliana C., LENZI, Ervim, OLIVEIRA, Cláudio C., NOZAKI, Jorge

“…A first-order derivative spectrophotometric method for the simultaneous determination of three textile dyes, Procion Yellow HE4R, Procion Red HE7B and Remazol…”
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