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Data do documentoTítuloAutor(es)Tipo
2013Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestionBressy, Fernanda Costa; Brito, Geysa Barreto; Barbosa, Isa dos Santos; Teixeira, Leonardo Sena Gomes; Korn, Maria das Graças AndradeArtigo de Periódico
2013Geographical Characterization of Beans Based on Trace Elements After Microwave-Assisted Digestion Using Diluted Nitric AcidSantos, Wagna Piler Carvalho dos; Santos, Daniele Cristina Muniz Batista; Fernandes, Andréa Pires; Castro, Jacira Teixeira; Korn, Maria das Graças AndradeArtigo de Periódico
1997Determination of Iron in Alkaline Salts by ICP-AES Using 1-(2-Thiazolylazo)-p-Cresol (TAC) for Preconcentration and SeparationFerreira, Sergio Luis Costa; Queiroz, Adriana Santana; Assis, Júlio César Rosa; Korn, Maria das Graças Andrade; Costa, Antonio Celso SpinolaArtigo de Periódico
2007Method development for the determination of manganese, cobalt and copper in green coffee comparing direct solid sampling electrothermal atomic absorption spectrometry and inductively coupled plasma optical emission spectrometryOleszczuk, Nédio; Castro, Jacira T.; Silva, Márcia M. da; Korn, Maria das Graças Andrade; Welz, Bernhard; Vale, Maria Goreti R.Artigo de Periódico
2000A separation method to overcome the interference of aluminium on zinc determination by inductively coupled plasma atomic emission spectroscopyJesus, Djane S. de; Korn, Maria das Graças Andrade; Ferreira, Sergio Luis Costa; Carvalho, Marcelo Souza deArtigo de Periódico
2009Application of multivariate optimization in the development of an ultrasound-assisted extraction procedure for multielemental determination in bean seeds samples using ICP OESSantos, Wagna Piler Carvalho; Castro, Jacira Teixeira; Bezerra, Marcos de Almeida; Fernandes, Andréa Pires; Ferreira, Sergio Luis Costa; Korn, Maria das Graças AndradeArtigo de Periódico
2002Determination of lead in seawater by inductively coupled plasma optical emission spectrometry after separation and pre-concentration with cocrystallized naphthalene alizariBispo, Márcia Sousa; Korn, Maria das Graças Andrade; Boa Morte, Elane Santos da; Teixeira, Leonardo Sena GomesArtigo de Periódico
2006Separation and preconcentration procedures for the determination of lead using spectrometric techniques: A reviewKorn, Maria das Graças Andrade; Ferreira, Sergio Luis Costa; Andrade, Jailson Bittencourt de; Jesus, Djane S. de; Lemos, Valfredo Azevedo; Bandeira, Marcus Luciano Souza de Ferreira; Santos, Walter Nei Lopes dos; Bezerra, Marcos de Almeida; Amorim, Fábio Alan Carqueija; Souza, Anderson SantosArtigo de Periódico
2009A critical evaluation of digestion procedures for coffee samples using diluted nitric acid in closed vessels for inductively coupled plasma optical emission spectrometryCastro, Jacira T.; Santos, Elisângela C.; Santos, Wagna P. C.; Costa, Letícia M.; Korn, Mauro; Nóbrega, Joaquim de Araújo; Korn, Maria das Graças AndradeArtigo de Periódico
2013An assessment of the applicability of the use of a plasticised PVC membrane containing pyrochatecol violet complexing reagent for the determination of Cu2 + ions in aqueous solutions by LIBSSantos, Klécia M.; Cortez, Juliana; Raimundo Junior, Ivo Milton; Pasquini, Celio; Boa Morte, Elane Santos da; Korn, Maria das Graças AndradeArtigo de Periódico