Determination of lead and cadmium in biological samples by potentiometric stripping analysis

1987 ◽  
Vol 326 (4) ◽  
pp. 350-353 ◽  
Author(s):  
M. Rozali bin Othman ◽  
J. O. Hill ◽  
R. J. Magee
Keyword(s):  
Biological Samples ◽  
Stripping Analysis ◽  
Lead And Cadmium ◽  
Potentiometric Stripping Analysis

Direct Determination of Cadmium and Lead in Whole Blood by Potentiometric Stripping Analysis

1992 ◽  
Vol 38 (10) ◽  
pp. 1995-2001 ◽  
Author(s):  
P Ostapczuk
Keyword(s):  
Detection Limit ◽  
Blood Sample ◽  
Whole Blood ◽  
Deposition Time ◽  
Supporting Electrolyte ◽  
Direct Determination ◽  
Stripping Analysis ◽  
Lead And Cadmium ◽  
Potentiometric Stripping Analysis

Abstract The commercially available equipment for potentiometric stripping analysis (PSA) was tested for routine lead and cadmium determination in whole-blood samples. In contrast to anodic stripping voltammetry, PSA is not subject to background interferences from organic electroactive constituents in the sample or to the presence of dissolved oxygen (i.e., oxygen removal is not necessary). To determine lead and cadmium by PSA, it is sufficient to dilute the blood sample with an appropriate supporting electrolyte (0.5 mol/L HCl). The detection limit changes with deposition time and volume of blood sample used. For 1 mL of blood and a 1-min deposition time, the detection limit is 1 microgram/L for both elements. If the deposition time increases to 10 min, cadmium can be determined at its normal concentration in blood (the detection limit is improved to < 0.1 microgram/L). Procedures for routine determination of lead and cadmium in whole blood are presented.

scholarly journals Potentiometric stripping analysis of lead and cadmium leaching from dental prosthetic materials and teeth

2004 ◽  
Vol 69 (7) ◽  
pp. 575-580 ◽  
Author(s):  
Ruzica Nikolic ◽  
Biljana Kalicanin ◽  
Goran Nikolic
Keyword(s):  
Dental Implants ◽  
Good Method ◽  
Lead Content ◽  
Cadmium Content ◽  
Stripping Analysis ◽  
Prosthetic Materials ◽  
Lead And Cadmium ◽  
Potentiometric Stripping Analysis ◽  
The Individual

Potentiometric stipping analysis (PSA) was applied for the determination of lead and cadmium leaching from dental prosthetic materials and teeth. The soluble lead content in finished dental implants was found to be much lower than that of the individual components used for their preparation. Cadmiumwas not detected in dental implants and materials under the defined conditions. The soluble lead and cadmium content of teeth was slightly lower than the lead and cadmium content in whole teeth (w/w) reported by other researchers except in the case of a tooth with removed amalgam filling. The results of this work suggest that PSA may be a good method for lead and cadmium leaching studies for investigation of the biocompatibility of dental prosthetic materials.

Sign in / Sign up

Export Citation Format

Share Document