1. E. Berman, Toxic Metals and their Analysis, Heyden, London, 1980, p. 19
2. K. Bencze, in: H.G. Seiler, A. Sigel, H. Sigel (Eds.), Handbook of Clinical and Analytical Chemistry, Marcel Dekker, New York, 1994, p. 228
3. B.A. Fowler, P.L. Goering, in: E. Merian (Ed.), Metals and their Compounds in the Environment, VCH, Weinheim, 1991, p. 743
4. Council Directive Relating to the Quality of Water Intended for Human Consumption (80/778/EEC), Council of the European Communities, 1980
5. Extraction of geological materials with mineral acids for the determination of arsenic, antimony, bismuth and selenium by hydride generation atomic absorption spectrometry