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High enhancement of macro and micronutrients quantification in Cajuína by ICP OES using ultrasound and multivariate analysis. Authorship: COELHO, T. L. S.; SILVA, D. S. N.; SOUZA FILHO, L. B. DE; ROCHA, J. M.; MARCANO DE HIGUERA, J.; SÁ, I. P. DE; GAMELA, R. R.; NOGUEIRA, A. R. de A.; LOPES JÚNIOR, C. A.; VIEIRA, E. C. A fast, safe, simple, and low-cost analytical method was developed for the determination of macro and microelements in Cajuína samples from Brazil combining UAE and ICP OES. A multiplexed approach usi... ... Repository: BDPA Publication year: 2023
Multivariate optimization and comparison between conventional extraction (CE) and ultrasonic-assisted extraction (UAE) of carotenoid extraction from cashew apple. Authorship: COELHO, T. L. S.; SILVA, D. S. N.; SANTOS JUNIOR, J. M. DOS; DANTAS, C.; NOGUEIRA, A. R. de A.; LOPES JÚNIOR, C. A.; VIEIRA, E. C. Carotenoids are an essential component of cashew and can be used in pharmaceuticals, cosmetics, natural pigment, food additives, among other applications. The present work focuses on optimizing and co... ... Repository: BDPA Publication year: 2022
Potencial genético de um cruzamento de feijão-caupi para as concentrações de proteínas, ferro e zinco no grão. Authorship: MONTEIRO, P. de O.; SILVA, K. J. D. e; FRANCO, L. J. D.; VIEIRA, E. C.; ROCHA, M. de M. O objetivo deste trabalho foi avaliar o potencial genético de um cruzamento de feijão-caupi para as concentrações de ferro, zinco e proteína no grão. Repository: BDPA Publication year: 2015
Decomposição de amostras de solos assistida por radiação microondas: estratégias para evitar a formação de fluoretos insolúveis. Authorship: VIEIRA, E. C.; KAMOGAWA, M. Y.; LEMOS, S. G.; NÓBREGA, J. A.; NOGUEIRA, A. R. de A. A decomposição de amostras que contêm elevados teores de Si, utilizando mistura com os ácidos nítrico e fluorídrico, pode provocar a precipitação de fluoretos de Al(III), Ca(II), Fe(III) e Mg(II) dura... ... Repository: BDPA Publication year: 2005
Optimization of focused-microwave-assisted digestion of bean samples and multielement determination using inductively coupled plasma optical emission spectromerty. Authorship: SANTOS, W. P. C.; VIEIRA, E. C.; COSTA, L. M.; KORN, M. das G. A.; NOGUEIRA, A. R. de A. Repository: BDPA Publication year: 2004
Orthophosphate, phytate, and total phosohorus determination in cerals by flow injection analysis. Authorship: VIEIRA, E. C.; NOGUEIRA, A. R. de A. A flow injection spectrophotometric procedure with enzymatic hydrolysis was developed for determination of orthophosphate, phytate and total phosphorus in cereal samples. Phosphorus species were extra... ... Repository: BDPA Publication year: 2004

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