Determination of trace mercury(II) in 0.1 M perchloric acid by differential pulse stripping voltammetry at a rotating gold disc electrode

1976 ◽  
Vol 48 (1) ◽  
pp. 212-214 ◽  
Author(s):  
Richard W. Andrews ◽  
John H. Larochelle ◽  
Dennis C. Johnson
Keyword(s):  
Perchloric Acid ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Disc Electrode ◽  
Differential Pulse Stripping Voltammetry

Determination of Lead in Bonemeal by Differential Pulse Anodic Stripping Voltammetry Using a Hydrochloric Acid Solubilization

1983 ◽  
Vol 66 (4) ◽  
pp. 985-988
Author(s):  
R Duane Satzger ◽  
Roy W Kuennen ◽  
Fred L Fricke
Keyword(s):  
Hydrochloric Acid ◽  
Rapid Method ◽  
Perchloric Acid ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Anodic Stripping ◽  
The Mean

Abstract A safe, rapid method is described for the determination of lead in bonemeal. This method uses a hydrochloric acid solubilization performed under pressure followed by determination by differential pulse anodic stripping voltammetry. This provides an alternative to a nitric-perchloric acid wet ash. Data obtained using both methods are compared. The mean recovery of a standard Pb spike was 99.2 ± 1%. The concentration of Pb in bonemeal ranged from 1.0 to 15.6 μg/g.

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