Indirect determination of hexavalent chromium ion in complex matrices by adsorptive stripping voltammetry at a mercury electrode

Talanta ◽  
2006 ◽  
Vol 68 (4) ◽  
pp. 1113-1119 ◽  
Author(s):  
A SAFAVI ◽  
N MALEKI ◽  
H SHAHBAAZI
Keyword(s):  
Hexavalent Chromium ◽  
Mercury Electrode ◽  
Stripping Voltammetry ◽  
Adsorptive Stripping Voltammetry ◽  
Complex Matrices ◽  
Indirect Determination ◽  
Chromium Ion

scholarly journals Sensitive and fast determination of papaverine by adsorptive stripping voltammetry on renewable mercury film electrode

2013 ◽  
Vol 11 (5) ◽  
pp. 736-741 ◽  
Author(s):  
Robert Piech ◽  
Beata Paczosa-Bator
Keyword(s):  
Mercury Electrode ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Calibration Graph ◽  
Adsorptive Stripping Voltammetry ◽  
Film Electrode ◽  
Mercury Film Electrode ◽  
Mercury Film ◽  
Preconcentration Time

AbstractThe renewable mercury film electrode, applied for the determination of papaverine traces using differential pulse adsorptive stripping voltammetry (DP AdSV) is presented. The calibration graph obtained for papaverine is linear from 1.25 nM (0.42 µg L−1) to 95 nM (32.2 µg L−1) for a preconcentration time of 60 s, with correlation coefficient of 0.998. For the renewable mercury electrode (Hg(Ag)FE) with a surface area of 9.1 mm2 the detection limit for a preconcentration time of 60 s is 0.7 nM (0.24 µg L−1). The repeatability of the method at a concentration level of the analyte as low as 17 µg L−1, expressed as RSD is 3.3% (n=5). The proposed method was successfully applied and validated by studying the recovery of papaverine from drugs, urine and synthetic solution.

Indirect Determination of Trace Copper(II) by Adsorptive Stripping Voltammetry with Zincon at a Carbon Paste Electrode

2008 ◽  
Vol 20 (4) ◽  
pp. 374-378 ◽  
Author(s):  
Mohammad Ali Taher ◽  
Mohammad Esfandyarpour ◽  
Shahryar Abbasi ◽  
Alireza Mohadesi
Keyword(s):  
Carbon Paste Electrode ◽  
Stripping Voltammetry ◽  
Adsorptive Stripping Voltammetry ◽  
Carbon Paste ◽  
Indirect Determination ◽  
Paste Electrode
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