Search Results - "A.R.A. Nogueira"

Evaluation of the mineral profile of textile materials using inductively coupled plasma optical emission spectrometry and chemometrics by Menezes, E.A., Carapelli, R., Bianchi, S.R., Souza, S.N.P., Matos, W.O., Pereira-Filho, E.R., Nogueira, A.R.A.

“…The content of Al, Ba, Ca, Cr, Cu, Fe, Ni, P, Zn, Cd and Pb was determined in textile material samples after microwave-assisted decomposition in a cavity oven…”
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Effect of pre-treatment and supporting media on Ni(II), Cu(II), Al(III) and Fe(III) sorption by plant root material by Araújo, G.C.L., Lemos, S.G., Ferreira, A.G., Freitas, H., Nogueira, A.R.A.

“…In this work Paspalum notatum root material was used to elucidate the influence of acid leaching pre-treatment and of sorption medium on metal adsorption…”
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Development of a screen-printed thick-film nitrate sensor based on a graphite-epoxy composite for agricultural applications by Artigas, J., Jimenez, C., Lemos, S.G., Nogueira, A.R.A., Torre-Neto, A., Alonso, J.

“…The present report describes the development of a thick-film sensor with intended applications for soil analysis. A probe incorporates three sensors, each at a…”
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Trends in developments of certified reference materials for chemical analysis - Focus on food, water, soil, and sediment matrices by Olivares, I.R.B., Souza, G.B., Nogueira, A.R.A., Toledo, G.T.K., Marcki, D.C.

“…The growing demand for traceable and reliable results in analytical chemistry can be illustrated with the growth in ISO/IEC 17025 accreditation. Among…”
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A polyvalent flow injection system for multielemental spectrophotometric analysis of plant materials1This paper was presented at the Flow Analysis VII conference held in Piracicaba, Brazil from 23–26 August 1997.1 by Silva, F.V, Nogueira, A.R.A, Souza, G.B, Zagatto, E.A.G

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Catalytic determination of cobalt by flow injection spectrophotometry: application in animal faeces analysis using hydrochloric acid as extracting solution by Nogueira, A.R.A, Souza, G.B, Batista, L.A.R, Arruda, M.A.Z, Miyazawa, M

“…A flow injection system for cobalt determination in faeces of bovines and equines receiving Co-EDTA as a tracer in animal nutrition studies is proposed, using…”
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Soil Calcium and pH Monitoring Sensor System by Lemos, Sherlan G, Nogueira, Ana Rita A, Torre-Neto, André, Parra, Aleix, Alonso, Julian

“…An agrarian sensorial system based on temperature, moisture, and all solid-state ion-selective potentiometric sensors was developed with the objective of…”
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Fast method for the determination of copper, manganese and iron in seafood samples by da Silva, Erik G.P., Hatje, Vanessa, dos Santos, Walter N.L., Costa, Letícia M., Nogueira, Ana R.A., Ferreira, Sérgio L.C.

“…A slurry sampling flame atomic absorption spectrometric method is proposed for the determination of copper, manganese and iron in oysters ( Crassostrea…”
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Effect of drying method and length of storage on tannin and total phenol concentrations in Pigeon pea seeds by Ferreira, E.C, Nogueira, A.R.A, Souza, G.B, Batista, L.A.R

“…Total phenols and condensed tannins in Pigeon pea seeds were determined by flow injection spectrophotometry. Folin-Denis and vanillin assays were used for…”
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Flow Injection Potentiometric System for the Simultaneous Determination of Inositol Phosphates and Phosphate:  Phosphorus Nutritional Evaluation on Seeds and Grains by Parra, Aleix, Ramon, Meritxell, Alonso, Julián, Lemos, Sherlan G, Vieira, Edivan C, Nogueira, Ana R. A

“…A simple flow injection potentiometric (FIP) system, which uses a tubular cobalt electrode, has been developed for phosphorus nutritional evaluation of seeds…”
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In Situ Soil Phosphorus Monitoring Probe Compared with Conventional Extraction Procedures by Lemos, S.G, Menezes, E.A, Chaves, F.S, Nogueira, A.R.A, Torre-Neto, A, Parra, A, Alonso, J

“…In this work, selective chemical sensors of phosphorus (PO4(3-)) installed in PVC probes and their associated instrumentation were evaluated in soil solution…”
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High-Throughput Microwave-Assisted Digestion and Extraction Procedures for Agricultural Materials by Nobrega, J.A, Nascentes, C.C, Araujo, G.C.L, Nogueira, A.R.A, Pirola, C

“…Despite the advances in microwave-assisted procedures, the sample throughput still remains a critical problem that requires the development of reactor vessels,…”
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Focused microwave-assisted acid digestion of oils: an evaluation of the residual carbon content by Costa, L.M., Silva, F.V., Gouveia, S.T., Nogueira, A.R.A., Nóbrega, J.A.

“…A focused-microwave oven was applied for acid digestion of oil samples. The aim was to evaluate the efficiency of the decomposition performed on a system with…”
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Determination of soil calcareous efficiency using flow system with pervaporative separation by Kamogawa, M.Y, Nogueira, A.R.A, Miyazawa, M, Artigas, J, Alonso, J

“…A method is described for the conductimetric determination of CO 2. The proposed system was constructed with a pervaporator chamber coupled to a flow system…”
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A polyvalent flow injection system for multielemental spectrophotometric analysis of plant materials by Silva, F.V, Nogueira, A.R.A, Souza, G.B, Zagatto, E.A.G

“…A polyvalent flow injection system consisting of a single manifold suitable to perform different determinations after only minor adaptations was conceived. Its…”
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Flow Injection System with Multisite Detection for Spectrophotometric Determination of Calcium and Magnesium in Soil Extracts and Natural Waters by Nogueira, Ana Rita A, Brienza, Sandra M. B, Zagatto, Elias A. G, Lima, José L. F. C, Araújo, Alberto N

“…A flow system with a relocatable detector for spectrophotometric determination of calcium (Ca) and magnesium (Mg) in KCl soil extracts and natural waters is…”
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Avaliação de genótipos de Leucaena spp. nas condições edafoclimáticas de São Carlos,SP: II. determinações bromatológicas no período de estabelecimento Evaluation of Leucaena spp. genotypes in the edaphic and climatic conditions of São Carlos, SP: II. bromatological determinations at the establishment period by A.C.P. de A. Primavesi, A.R.A. Nogueira, O. Primavesi, R. Godoy, L.A.R. Batista, N.J. Novaes, M.S. França-Dantas

“…Em experimento conduzido em Latossolo Vermelho-Amarelo distrófico, em área da EMBRAPA - CPPSE em São Carlos, situada a 22°01'S e 47°53'W, com altitude de 856 m…”
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Avaliação de genótipos de Leucaena spp. nas condições edafoclimáticas de São Carlos, SP: I. caracterização fenotípica e avaliação agronômica by Primavesi, A.C.P. de A., Nogueira, A.R.A., Primavesi, O., Godoy, R., Batista, L.A.R., Novaes, N.J., França-Dantas, M.S.

“…Para avaliar genótipos promissores de Leucaena spp., foi instalado experimento em Latossolo Vermelho-Amarelo distrófico, na área da EMBRAPA-CPPSE em São…”
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Avaliação de genótipos de Leucaena spp. nas condições edafoclimáticas de São Carlos,SP: II. determinações bromatológicas no período de estabelecimento by Primavesi, A.C.P. de A., Nogueira, A.R.A., Primavesi, O., Godoy, R., Batista, L.A.R., Novaes, N.J., França-Dantas, M.S.

“…Em experimento conduzido em Latossolo Vermelho-Amarelo distrófico, em área da EMBRAPA - CPPSE em São Carlos, situada a 22°01'S e 47°53'W, com altitude de 856 m…”
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Avaliação de genótipos de Leucaena spp. nas condições edafoclimáticas de São Carlos, SP: I. caracterização fenotípica e avaliação agronômica Evaluation of Leucaena spp. genotypes in the edaphic and climatic conditions of São Carlos, SP: I. phenotypical characterization and agronomical evaluation by A.C.P. de A. Primavesi, A.R.A. Nogueira, O. Primavesi, R. Godoy, L.A.R. Batista, N.J. Novaes, M.S. França-Dantas

“…Para avaliar genótipos promissores de Leucaena spp., foi instalado experimento em Latossolo Vermelho-Amarelo distrófico, na área da EMBRAPA-CPPSE em São…”
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