Elimination of the Matrix Effect in the Cold-Vapor Atomic Absorption Analysis of Mercury in Human Hair Samples
- 1 January 1981
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Analytical Toxicology
- Vol. 5 (1) , 52-55
- https://doi.org/10.1093/jat/5.1.52
Abstract
The percent recovery of mercury from human hair digest samples, using the peak height cold-vapor atomic adsorption method is 73.0% ± 10.3%. This value and its reproducibility are raised to 102.2% ± 6.3% by the use of peak area measurements in place of peak height. The so-called matrix effect is thus eliminated, and its origin shown to be in the slower (but still quantitative) release of mercury from biological samples. Although greater reliability is obtained using peak area, this is gained at the cost of analysis time.This publication has 3 references indexed in Scilit:
- Improved Cold-Vapor Atomic Absorption Technique for the Microdetermination of Total and Inorganic Mercury in Biological SamplesJournal of Analytical Toxicology, 1981
- Direct determination of mercury in blood by use of sodium borohydride reduction and atomic absorption spectrophotometry.Clinical Chemistry, 1979
- Epidemiological Experience with the Magos' Reagents in the Determination of Different Forms of Mercury in Biological Samples by Flameless Atomic AbsorptionJournal of Analytical Toxicology, 1977