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View article: Adsorção de chumbo (II) em solução aquosa usando carvão ativado do caroço da manga (Mangifera indica L.)
Adsorção de chumbo (II) em solução aquosa usando carvão ativado do caroço da manga (Mangifera indica L.) Open
RESUMO Uma maneira eficaz de se aproveitar os resíduos agrícolas é convertê-los na forma de carvão ativado, o qual possui diversas utilidades, incluindo a purificação de água. Com este objetivo o carvão ativado derivado do caroço de manga …
View article: Chemical Speciation of Arsenic and Chromium in Seafood by LC-ICP-MS
Chemical Speciation of Arsenic and Chromium in Seafood by LC-ICP-MS Open
Two methods were developed for the As and Cr species determination in different kinds of seafood, exploring the LC-ICP-MS potential and chemometric approach to define the extraction conditions. Adequates separation and sensitivity data by …
View article: High enhancement of macro and micronutrients quantification in Cajuína by ICP OES using ultrasound and multivariate analysis
High enhancement of macro and micronutrients quantification in Cajuína by ICP OES using ultrasound and multivariate analysis Open
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 using experimental designs was applied for…
View article: Aplication of Box-Behnken Design to Optimize the Coprecipitation Parameters to Assess As and Cd Contamination in Marine Fish
Aplication of Box-Behnken Design to Optimize the Coprecipitation Parameters to Assess As and Cd Contamination in Marine Fish Open
A Box-Behnken design approach was used to plan the experiments for As and Cd determination in fish samples. It combines microwave-induced plasma optical emission spectrometry (MIP OES) with silver nitrate and potassium chromate coprecipita…
View article: Assessment of as and Cd Contamination in Marine Fish by Coprecipitation-Microwave Inductively Optical Emission Spectrometry Arrangement
Assessment of as and Cd Contamination in Marine Fish by Coprecipitation-Microwave Inductively Optical Emission Spectrometry Arrangement Open
View article: Determination of Al, Ba, Cd, Cr, Cu, Fe, Sr, and Ti in Sparkler Candles by MIP OES
Determination of Al, Ba, Cd, Cr, Cu, Fe, Sr, and Ti in Sparkler Candles by MIP OES Open
Composed of an oxidizer, fuel, metallic powders, and binders, sparkler candles are widely used on birthdays and celebrations. A procedure for the determination of Al, Ba, Cd, Cr, Cu, Fe, Sr, and Ti in sparkler candles by microwave plasma o…
View article: Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot
Determination of lanthanide and actinide elements by energy dispersive x-ray fluorescence spectrometry applying DLLME preconcentration and dried spot Open
View article: Chromium speciation in organic fertilizer by cloud point extraction and optimization through experimental Doehlert design as support for legislative aspects
Chromium speciation in organic fertilizer by cloud point extraction and optimization through experimental Doehlert design as support for legislative aspects Open
Brazilian and EU legislation establishes 2 mg kg−1 as the maximum limit of Cr(VI) in organic fertilizers. A procedure involving chromium speciation was developed. With this approach, the interference caused by humic acid present in the sam…
View article: PRECONCENTRATION BASED ON COPRECIPITATION USING SILVER CHROMATE AS A CARRIER FOR COPPER DETERMINATION BY FAAS
PRECONCENTRATION BASED ON COPRECIPITATION USING SILVER CHROMATE AS A CARRIER FOR COPPER DETERMINATION BY FAAS Open
In the present paper, a preconcentration procedure based in the coprecipitation of copper by silver dichromate (Ag2CrO4) and consecutive determination by flame atomic absorption spectrometry (FAAS) was proposed. The experimental factors we…
View article: PRÉ-CONCENTRAÇÃO BASEADA NA COPRECIPITAÇÃO USANDO CROMATO DE PRATA COMO CARREADOR PARA DETERMINAÇÃO DE COBRE POR FAAS
PRÉ-CONCENTRAÇÃO BASEADA NA COPRECIPITAÇÃO USANDO CROMATO DE PRATA COMO CARREADOR PARA DETERMINAÇÃO DE COBRE POR FAAS Open
In the present paper, a preconcentration procedure based in the coprecipitation of copper by silver dichromate (Ag2CrO4) and consecutive determination by flame atomic absorption spectrometry (FAAS) was proposed. The experimental factors we…
View article: Study of the Cu(II) Removal from Aqueous Medium Using Carbon Prepared from Licuri Shell (Syagrus coronata)
Study of the Cu(II) Removal from Aqueous Medium Using Carbon Prepared from Licuri Shell (Syagrus coronata) Open
Different alternatives for the removal of metals in waters and effluents are used, and the adsorption is a widely used method. This study aimed to preparation of the activated carbon from the shell of licuri (Syagrus coronata) coconut (LAC…