Browsing by Author Costa, Antonio Celso Spinola

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Issue DateTitleAuthor(s)Type
2004Copper, zinc and manganese determination in saline samples employing faas after separation and preconcentration on Amberlite XAD-7 and Dowex 1x-8 loaded with Alizarin Red S-Artigo de Periódico
1997Determination of Iron in Alkaline Salts by ICP-AES Using 1-(2-Thiazolylazo)-p-Cresol (TAC) for Preconcentration and Separation-Artigo de Periódico
19912-(2-Thiazolylazo)-p-cresol (TAC) as a reagent for the spectrophotometric determination of indium(III)-Artigo de Periódico
2000An on-line continuous flow system for copper enrichment and determination by flame atomic absorption spectroscopy-Artigo de Periódico
Mar-1999Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparations-Artigo de Periódico
2008Pre-concentration procedure for determination of copper and zinc in food samples by sequential multi-element flame atomic absorption spectrometry-Artigo de Periódico
2002Separation and Pre-concentration of Cadmium, Copper, Lead, Nickel and Zinc by Solid-Liquid Extraction of their Cocrystallized Naphthalene Dithizone Chelate in Saline Matrices-Artigo de Periódico
3-Jun-2005Determination of Pb in river water samples by inductively coupled plasma optical emission spectrometry after ultrasound-assisted co-precipitation with manganese dioxide-Artigo de Periódico
2002Flow-injection solid phase partial least-squares spectrophotometric simultaneous determination of iron, nickel and zinc-Artigo de Periódico
1999Uso de irradiação de microondas na determinação espectrofotométrica de cromo com EDTA-Artigo de Periódico
2001Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparations-Artigo de Periódico
1998ICP–AES determination of small amounts of zinc in copper-base alloys after separation by adsorption of the zinc–TAN complex on Sep Pak C18 cartridges-Artigo de Periódico
1997Spectrophotometric and inductively coupled plasma atomic emission spectrometric determination of titanium in ilmenites after rapid dissolution with phosphoric acid-Artigo de Periódico
1999Nickel determination in saline matrices by ICP-AES after sorption on Amberlite XAD-2 loaded with PAN-Artigo de Periódico
19982-(2-Thiazolylazo)-p-cresol as a spectrophotometric reagent for vanadium determination in the presence of ascorbic acid-Artigo de Periódico
2002Determinação de Mn, Cu e Zn em matrizes salinas após separação e pré-concentração usando amberlite XAD-7 impregnada com vermelho de Alizarina S-Artigo de Periódico
1992Sequential determination of iron and titanium by flow-injection analysis-Artigo de Periódico
May-1999Nickel determination in saline matrices by ICP-AES after sorption on Amberlite XAD-2 loaded with PAN-Artigo de Periódico
2001Alternativas analíticas para determinação de ferro e titânio em cimento Portland-Artigo de Periódico
2005Determination of copper in powdered chocolate samples by slurry-sampling flame atomic-absorption spectrometry-Artigo de Periódico