Use of sodium dodecyl sulfate as an antifouling and homogenizing agent in the direct determination of heavy metals by anodic stripping voltammetry

The Analyst ◽  
2004 ◽  
Vol 129 (8) ◽  
pp. 751 ◽  
Author(s):  
Boy Hoyer ◽  
Nina Jensen
Keyword(s):  
Heavy Metals ◽  
Sodium Dodecyl Sulfate ◽  
Anodic Stripping Voltammetry ◽  
Sodium Dodecyl ◽  
Direct Determination ◽  
Stripping Voltammetry ◽  
Anodic Stripping ◽  
Dodecyl Sulfate

scholarly journals DIFFERENTIAL PULSE ANODIC STRIPPING VOLTAMMETRY FOR DETERMINATION OF SOME HEAVY METALS IN URANIUM

2010 ◽  
Vol 9 (2) ◽  
pp. 243-246
Author(s):  
Saryati Saryati
Keyword(s):  
Heavy Metals ◽  
Anodic Stripping Voltammetry ◽  
Direct Determination ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Buffer Solution ◽  
Carbonate Buffer ◽  
Relative Standard ◽  
Anodic Stripping

The direct determination of some metals impurity in uranium by using differential pulse anodic stripping voltammetry (DPASV) method at a hanging mercury drop electrode and in a carbonate buffer media was developed. It was found that the carbonate buffer show the strongest affinity for uranium and gives the best separation between the DPASV peaks of heavy metals impurities. The carbonate concentration markedly affects the oxidation and reduction the major and the minor constituents of the uranium samples. In 0.1 M carbonate buffer solution pH 10, copper, bismuth, thalium, lead, cadmium, zinc, could be determined without the removal of the uranium matrix. Recovery and relative standard deviation (RSD) of this method was in the range of 174% - 85.2% for recovery and 36.8% - 1.2% for RSD. The larger error of analytical result was obtained for Zn at low concentration. In general, the analytic results error and RSD decreased with increasing metals concentration.   Keywords: heavy metal determination, differential pulse anodic stripping voltammetry, uranium

Direct Determination of Lead in Evaporated Milk and Apple Juice by Anodic Stripping Voltammetry: Collaborative Study

1983 ◽  
Vol 66 (6) ◽  
pp. 1414-1420
Author(s):  
Eric W Zink ◽  
Phillip H Davis ◽  
Reginald M Griffin ◽  
Wayne R Matson ◽  
Robert A Moffitt ◽  
...  
Keyword(s):  
Apple Juice ◽  
Fruit Juice ◽  
Anodic Stripping Voltammetry ◽  
Collaborative Study ◽  
Direct Determination ◽  
Stripping Voltammetry ◽  
Sample Type ◽  
Anodic Stripping ◽  
Different Levels

Abstract A method for the direct determination of lead in evaporated milk and in fruit juice with no prior sample digestion was successfully collaborated by 13 laboratories. The anodic stripping voltammetric (ASV) method studied consisted of adding 0.2 mL aliquots of evaporated milk or 0.3 mL aliquots of fruit juice to 2.9 mL of a dechelating reagent, Metexchange. The reagent-sample mixture is then analyzed for lead by ASV with no further sample preparation. Each collaborator received 24 samples, 2 each at 5 different levels (0.07-0.70 ppm for spiked evaporated milk and 0.09-0.87 ppm for spiked apple juice) along with duplicate practice samples of labeled lead content at each of 2 levels for each sample type. All unknowns were coded with random numbers. Approximately 69% of the reporting laboratories had never analyzed either evaporated milk or fruit juice for lead. Average time between receipt of samples and reporting of results was 1.6 days for all laboratories. The pooled variations between duplicate determinations for apple juice and evaporated milk were 0.00059 and 0.00043, respectively. The method was adopted official first action for both fruit juice and evaporated milk.

Determination of heavy metals in real samples by anodic stripping voltammetry with mercury microelectrodes

1989 ◽  
Vol 219 ◽  
pp. 19-26 ◽  
Author(s):  
Salvatore Daniele ◽  
Maria-Antonietta Baldo ◽  
Paolo Ugo ◽  
Gian-Antonio Mazzocchin
Keyword(s):  
Heavy Metals ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Real Samples ◽  
Anodic Stripping
Sign in / Sign up

Export Citation Format

Share Document