Trindade J.M.,Federal University of Paraiba |
Trindade J.M.,Laboratorio Of Pesquisa Em Quimica Analitica Lpqa |
Martiniano L.C.,Federal University of Paraiba |
Martiniano L.C.,Laboratorio Of Analises E Pesquisa Em Quimica Analitica Of Petroleo E Biocombustiveis |
And 8 more authors.
Fuel | Year: 2012
In this paper a rapid method of anodic stripping voltammetry (ASV) coupled with experimental design was developed for simultaneous determination of Zn 2+, Cd2+, Pb2+, and Cu2+ in gasoline samples. A microwave assisted gasoline digestion procedure for sample preparation was also established. The determination limit was found to be 0.24 μg L-1 for Zn2+; 8.58 × 10-4 μg L-1 for Cd2+; 0.13 μg L-1 for Pb 2+, and 0.87 μg L-1 for Cu2+. It was found that the interferences of concomitant metal ions were negligible. Gasoline samples collected in the city of São Luis (MA), Brazil were analyzed using this developed method, and the results demonstrated that this method was reliable and accurate. It is expected that this method can be used as a routine technique for metal ion determination in gasoline. © 2011 Elsevier Ltd. All rights reserved.