Anodic stripping voltammetry coupled with design of experiments for simultaneous determination of Zn+2, Cu+2, Pb+2, and Cd+2 in gasoline

作者：Trindade Jemmla M.; Martiniano Lorena C.; Gonalves Vivia R.A.; Souza Antonio G.; Marques Aldaléa L.B.; Baugis Guintar L.; Fonseca Teresa C.O.; Song Chaojie; Zhang Jiujun; Marques Edmar P.^*

来源：Fuel, 2012, 91(1): 26-32.

DOI：10.1016/j.fuel.2011.06.015

• Anodic stripping voltammetry
• Design of experiments (DOE)
• Digestion procedure
• Gasoline samples
• Metal determination
• Microwave assisted
• Rapid method
• Sample preparation
• Simultaneous determinations

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-1for Zn2+;8.58 ×10-4μg L-1for Cd2+;0.13 μg L-1for Pb 2+, and 0.87 μg L-1for Cu2+. It was found that the interferences of concomitant metal ions were negligible. Gasoline samples collected in the city of Sa˜o 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.

• 出版日期2012