The direct and indirect determination of traces of copper, lead and cadmium in mercury by voltammetry at the hanging mercury drop electrode

1983 ◽  
Vol 149 ◽  
pp. 137-146 ◽  
Author(s):  
Stefan Głodowski ◽  
Zenon Kublik
Keyword(s):  
Hanging Mercury Drop Electrode ◽  
Indirect Determination ◽  
Mercury Drop Electrode ◽  
Lead And Cadmium ◽  
Copper Lead

Voltammetric determination of trace amounts of aluminium

1989 ◽  
Vol 54 (2) ◽  
pp. 370-374 ◽  
Author(s):  
Věra Stará ◽  
Miloslav Kopanica
Keyword(s):  
Linear Dependence ◽  
Differential Pulse ◽  
Hanging Mercury Drop Electrode ◽  
Pulse Technique ◽  
Aluminium Concentration ◽  
Lead And Cadmium ◽  
Effect Of Copper ◽  
Alizarin Violet ◽  
Copper Lead

Aluminium is determined voltammetrically in the form of the aluminium complex with Acid Alizarin Violet N in an acetate buffer of pH 5.2 using a hanging mercury drop electrode and the d.c. or differential pulse technique. A linear dependence between the peak current and the aluminium concentration was obtained in the range from 2.10-8 to 5.10-6 mol l-1. The interfering effect of copper, lead and cadmium is eliminated by the auxiliary complex forming reagent-glycine.

scholarly journals Indirect determination of lutetium by differential pulse anodic stripping voltammetry at a hanging mercury drop electrode

2008 ◽  
Vol 6 (1) ◽  
pp. 65-69 ◽  
Author(s):  
Ksenija Kumrić ◽  
Tatjana Trtić-Petrović ◽  
Ljubiša Ignjatović ◽  
Jožef Čomor
Keyword(s):  
Acidic Solution ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Hanging Mercury Drop Electrode ◽  
Peak Current ◽  
Indirect Determination ◽  
Mercury Drop Electrode ◽  
Anodic Stripping

AbstractLutetium has been determined by differential pulse anodic stripping voltammetry in an acidic solution containing Zn-EDTA. Lutetium (III) ions liberated zinc (II), which was preconcentrated on a hanging mercury drop electrode and stripped anodically, resulting in peak current linearly dependent on lutetium (III) concentration. Less than 0.4 ng mL−1 lutetium could be detected after a 2 min deposition.

The voltammetric determination of 4-nitrobiphenyl

1991 ◽  
Vol 56 (3) ◽  
pp. 595-601 ◽  
Author(s):  
Jiří Barek ◽  
Gulamustafa Malik ◽  
Jiří Zima
Keyword(s):  
Differential Pulse Voltammetry ◽  
Differential Pulse ◽  
Voltammetric Determination ◽  
Hanging Mercury Drop Electrode ◽  
Optimum Conditions ◽  
Mercury Drop Electrode ◽  
Working Electrode ◽  
Pulse Voltammetry ◽  
Unstirred Solution

Optimum conditions were found for the determination of 4-nitrobiphenyl by fast scan differential pulse voltammetry at a hanging mercury drop electrode in the concentration range 1 . 10-5 to 2 . 10-7 mol l-1. A further increase in sensitivity was attained by adsorptive accumulation of this substance on the surface of the working electrode, permitting determination in the concentration range (2 – 10) . 10-8 mol l-1 with one minute accumulation of the substance in unstirred solution or (2 – 10) . 10-9 mol l-1 with three-minute accumulation in stirred solution. Linear scan voltammetry can be used to determine 4-nitrobiphenyl in the concentration range (2 – 10) . 10-9 mol l-1 with five-minute accumulation in stirred solution, with the advantage of a smoother baseline and smaller interference from substances that yield only tensametric peaks.

Sign in / Sign up

Export Citation Format

Share Document