scholarly journals Determination of Cd, Pb and Ni by square wave stripping voltammetry in particulate matter collected in workplace atmosphere of some Brazilian industrial foundries

2005 ◽  
Vol 16 (4) ◽  
pp. 801-807 ◽  
Author(s):  
Fabiana S. Felix ◽  
Jaim Lichtig ◽  
Luciana B.O. dos Santos ◽  
Jorge C. Masini
Keyword(s):  
Particulate Matter ◽  
Stripping Voltammetry ◽  
Square Wave ◽  
Square Wave Stripping Voltammetry

scholarly journals DETERMINATION OF PESTICIDE DIAZINON BY ADSORPTIVE SQUARE-WAVE STRIPPING VOLTAMMETRY WITH DROPPING MERCURY ELECTRODE

2009 ◽  
Vol 12 (13) ◽  
pp. 85-92
Author(s):  
Hien Dinh Thi Nhu Nguyen ◽  
Lam Bich Tran ◽  
Giao Trong Nguyen
Keyword(s):  
Detection Limit ◽  
Ammonium Acetate ◽  
Mercury Electrode ◽  
Stripping Voltammetry ◽  
Square Wave ◽  
Dropping Mercury Electrode ◽  
Square Wave Stripping Voltammetry ◽  
Acetate Electrolyte ◽  
High Repeatability

A method for trace determination of the pesticide Diazinon using adsorptive square-wave stripping voltammetry (AdSWSV) at the dropping mercury electrode (DME) was described. The pesticide was accumulated at the DME and a well-defined stripping peak was obtained at -1012 mV vs Ag/AgCl/KCI electrode in 0.4 N ammonium acetate electrolyte soluti pH 4.3. Peak current was linear over Diazinon concentration range of 800 – 3200 ppb. Detection limit was 16.49 ppb. Effects of some other pesticides (Chlorpyrifos and Cypermethrin) on Diazinon peak and the recovery of Diazinon from artichoke leaves were studied. The method was extended to the determination of Diazinon in artichoke leaves. The recovery of Diazinon from artichoke leaves was 90.31 - 93.55%. Detection limit was 29.82 ppb. Method had high repeatability and selectivity.

Determination of silver ions at submicrogram-per-liter levels using anodic square-wave stripping voltammetry

1998 ◽  
Vol 17 (4) ◽  
pp. 642-649 ◽  
Author(s):  
Deniz E. Schildkraut ◽  
Phat Tan Dao ◽  
John P. Twist ◽  
Ann T. Davis ◽  
Ken A. Robillard
Keyword(s):  
Silver Ions ◽  
Stripping Voltammetry ◽  
Square Wave ◽  
Square Wave Stripping Voltammetry
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