Hair analysis. Part 1: Differential pulse anodic stripping voltammetric determination of lead, cadmium, zinc and copper in human hair samples of persons in permanent contact with a polluted workplace environment
✍ Scribed by Wiesław Wasiak; Wanda Ciszewska; Aleksander Ciszewski
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 509 KB
- Volume
- 335
- Category
- Article
- ISSN
- 0003-2670
No coin nor oath required. For personal study only.
✦ Synopsis
F'rior to determination of Pb, Cd, Zn and Cu by differential pulse anodic stripping voltanunetry microwave digestion has been evaluated for the decomposition of human hair samples using a HNOs-H202 mixture. The efficiency of the decomposition, and the accuracy and precision of the proposed procedure was studied using a human hair standard. Hair samples were collected from the vertex of the scalps of donors who were employed in factories manufacturing lead-acid batteries, nickel-cadmium batteries and gas (petroleum) vending station workers. The results show that, in all cases, permanent contact with the polluted environment makes it possible to absorb very large amounts of lead or cadmium, simultaneously depressing zinc absorption. Results of a study on the content of the above elements in human hair of persons who had had no work place contact with these elements are also presented.