As(III) Determination in the Presence of Pb(II) by Differential Alternative Pulses Voltammetry

作者：Zlatev Roumen^*; Stoytcheva Margarita; Valdez Benjamin

来源：Electroanalysis, 2010, 22(15): 1671-1674.

DOI：10.1002/elan.201000090

• As(III) determination
• Differential alternative pulses voltammetry (DAPV)
• Safe disposable mercury drop electrode
• Arsenic

Differential Alternative Pulses Voltammetry (DAPV). introduced by the authors earlier. was applied with HMDE for direct As(III) determination in the presence of Pb(II) in natural water without sample pretreatment Distinguishable peaks of As(III) and Pb(II) were registered in 1 M supporting electrolyte at a concentration ratio as high as 1 6. while complete peak overlapping occurs applying DPP at any concentration ratio at the same experimental conditions In-situ As(III) determinations in the presence of Pb(II) in contaminated ground waters in Mexico were performed. using especially designed disposable safe mercury chop electrodes

• 出版日期2010-8