Rocha, L. S.Pereira, E.Duarte, A. C.Pinheiro, J. P.2013-12-032013-12-032011Rocha, L. S.; Pereira, E.; Duarte, A. C.; Pinheiro, J. P.Performance of Ex Situ Bismuth Film Rotating Disk Electrode in Trace Metal Analysis by Stripping Chronopotentiometry: Definition of the Depletion Regime and Optimization of Experimental Parameters, Electroanalysis, 23, 8, 1891-19, 2011.1040-0397AUT: JPI01020;http://hdl.handle.net/10400.1/3208The potentiality of the ex situ deposited bismuth film electrode, allied to the rotation of a glassy carbon disk electrode (BiFE-RDE), was exploited in trace metal analyses of lead(II) and cadmium(II) by stripping chronopotentiometry (SCP). A single BiFE (6.2 nm film thickness) can be used for a 1-day term with no significant variation in the analytical signal. The limit of detection (3s) for a deposition time of 40 s and an oxidation current of 15 10 9 A was 1.5 10 8 M for Pb(II) and 3.0 10 8 M for Cd(II). BiFE-RDE was successfully applied to the direct SCP determination of lead(II) in a fresh water certified material.engBismuth film electrodeFresh waterHeavy metalsStripping chronopotentiometryThin mercury film electrodejournal article2013-11-26http://dx.doi.org/10.1002/elan.201100119