Determination of thallium in soils by differential pulse anodic stripping voltammetry by means of a mercury film electrode

1994 ◽  
Vol 349 (8-9) ◽  
pp. 692-693 ◽  
Author(s):  
Claudia von Laar ◽  
Regina Reinke ◽  
Jürgen Simon
Keyword(s):  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Film Electrode ◽  
Mercury Film Electrode ◽  
Mercury Film ◽  
Anodic Stripping

scholarly journals Direct simultaneous determination of Pb(II) and Cu(II) in biodiesel by anodic stripping voltammetry at a mercury-film electrode using microemulsions

Fuel ◽  
2013 ◽  
Vol 103 ◽  
pp. 1164-1167 ◽  
Author(s):  
Lorena C. Martiniano ◽  
Vivia R. Abrantes ◽  
Sakae Y. Neto ◽  
Edmar P. Marques ◽  
Teresa C.O. Fonseca ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Film Electrode ◽  
Mercury Film Electrode ◽  
Mercury Film ◽  
Anodic Stripping

Determination of Trace Amounts of Thallium in Urine, Using the Mercury-Film Electrode and Differential Pulse Anodic Stripping Voltammetry

1974 ◽  
Vol 57 (6) ◽  
pp. 1366-1372 ◽  
Author(s):  
Arvine R Curtis
Keyword(s):  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Complexing Agent ◽  
Electrolysis Cell ◽  
Film Electrode ◽  
Mercury Film Electrode ◽  
Anodic Stripping ◽  
No Sample Preparation

Abstract Thallium concentrations as low as 0.2 ppb may be easily and accurately measured with no sample preparation. The urine is pipetted directly into the electrolysis cell containing 0.1M HClO4 and deaerated; a 2 min electrolysis is performed, and the thallium is oxidized from the mercury-thallium amalgam, using differential pulse anodic stripping voltammetry. The standards are spiked thallium-free urine solutions; thus the samples and standards reflect each other closely, and as the standard curves are repeatable to within ± 5% (down to 2 ppb thallium), the recoveries range from 95 to 105%. Lead is not a serious interference; however, cadmium does interfere and a complexing agent must be used when determining traces of thallium in the presence of cadmium.

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.

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