Paulo dos Santos Roldan

Simultaneous preconcentration of copper, zinc, cadmium, and nickel in water samples by cloud point extraction using 4-(2-pyridylazo)-resorcinol and their determination by inductively coupled plasma optic emission spectrometry

Edson Luiz Silva, Paulo dos Santos Roldan, María Fernanda Giné · Journal of Hazardous Materials · 2009 · 253 citations

Cloud Point Extraction, Chemical Engineering, Environmental Chemistry +15

Simultaneous flow injection preconcentration of lead and cadmium using cloud point extraction and determination by atomic absorption spectrometry

Edson Luiz Silva, Paulo dos Santos Roldan · Journal of Hazardous Materials · 2008 · 143 citations

Cloud Point Extraction, Chemical Engineering, Environmental Chemistry +10

Synthesis, characterization and determination of the metal ions adsorption capacity of cellulose modified with p-aminobenzoic groups

Gustavo R. Castro, Ilton Luiz de Alcântara, Paulo dos Santos Roldan et al. · Materials Research · 2004 · 94 citations · Full text

Chemical Engineering, P-aminobenzoic Groups, Metal Ions +15

Determination of Cu, Ni and Pb in aqueous medium by FAAS after pre-concentration on 2-aminothiazole modified silica gel

Ilton Luiz de Alcântara, Paulo dos Santos Roldan, Maurício A. L. Margionte et al. · Journal of the Brazilian Chemical Society · 2004 · 35 citations · Full text

Materials Science, Flow-injection System, Chemical Engineering +15

GFAAS Determination of Zinc in Fish Feed and Feces Using Slurry Sampling

Mayra Anton Dib Saleh, Renato de Cássio Ferreira Neves, Fábio Arlindo Silva et al. · Food Analytical Methods · 2008 · 14 citations

Environmental Chemistry, Nutrient Bioavailability, Gfaas Determination +8