Otro
Direct simultaneous determination of Pb(II) and Cu(II) in biodiesel by anodic stripping voltammetry at a mercury-film electrode using microemulsions
Registro en:
Fuel, v. 103, p. 1164-1167.
0016-2361
10.1016/j.fuel.2012.07.002
WOS:000311932200145
2-s2.0-84870502998
Autor
Martiniano, Lorena C.
Abrantes, Vivia R.
Neto, Sakae Y.
Marques, Edmar P.
Fonseca, Teresa C.O.
Paim, Leonardo L.
Souza, Antônio G.
Stradiotto, Nelson Ramos
Aucélio, Ricardo Q.
Cavalcante, Glene H.R.
Marques, Aldaléa L.B.
Resumen
A mercury film electrode was used to determine direct and simultaneously Pb(II) (at -410 mV) and Cu(II) (at -100 mV) in biodiesel by anodic stripping voltammetry. A linear response was obtained for Pb(II) and Cu(II) in the 2.00 × 10-8-1.00 × 10-7 mol L-1 concentration range and detection limits were 2.91 × 10-9 mol L-1 and 4.69 × 10-9 mol L-1 for Pb(II) and Cu(II), respectively, with recovery around of 100.0%. © 2012 Elsevier Ltd. All rights reserved.