Determination of Mg (II) in Biodiesel by Adsorptive Stripping Voltammetry at a Mercury Film Electrode in the Presence of Sodium Thiopentone

作者：Zezza Tina R C^*; Paim Leonardo L; Stradiotto Nelson R

来源：International Journal of Electrochemical Science, 2013, 8(1): 658-669.

• Biodiesel
• Mg (II) Determination
• Sodium Thiopentone
• Adsorptive Stripping Voltammetry
• Mercury Film Electrode

A mercury film electrode was used to determine Mg (II) in biodiesel by adsorptive stripping voltammetry in presence of sodium thiopentone. A linear response was obtained for Mg (II) in the concentration range of 6.0 x 10(-7) to 7.0 x 10(-6) mol L-1 for SWAdSV and 8.0 x 10(-7) to 9.0 x 10(-6) mol L-1 for DPAdSV with detection limits of the 2.9 x 10(-7) mol L-1 and 3.1 x 10(-7) mol L-1, respectively. The method was applied successfully to biodiesel samples and presented goods results of accuracy with recoveries close to 100.0 % for SWAdSV and DPAdSV.

• 出版日期2013-1