Flameless atomic absorption spectroscopic determination of heavy metals in whole-fish samples

Journal Article · Mon May 01 00:00:00 EDT 1978 · Association of Official Analytical Chemists J.; (United States)

OSTI ID:6450320

Okuno, I; Whitehead, J A; White, R E

Research report:The need for a reliable and sensitive procedure for analyzing residues of lead, chromium, and cadmium in whole fish samples led to the development of a new method. The procedure involves sample destruction by dry-ashing, separation of the metals by chelation with ammonium pyrrolidine dithiocarbamate in methyl isobutyl ketone, and finally back-partitioning of the metals into an aqueous acid solution for later analysis. Determination is done by flameless atomic absorption spectroscopy using a carbon rod atomizer. Recoveries of the samples averaged 91% for lead, 100% for chromium, and 100% for cadmium, at the levels tested. The procedure is detailed, and results are tabulated. The method should be applicable to other metals that can be chelated. (3 graphs, 14 references, 2 tables)

• Research Organization: US Fish and Wildlife Service, Denver
• OSTI ID: 6450320
• Journal Information: Association of Official Analytical Chemists J.; (United States), Journal Name: Association of Official Analytical Chemists J.; (United States) Vol. 61:3
• Country of Publication: United States
• Language: English

Related Subjects

560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION SPECTROSCOPY
ANIMALS
AQUATIC ORGANISMS
CADMIUM
CHELATES
CHELATING AGENTS
CHROMIUM
COMPLEXES
CONTAMINATION
ELEMENTS
FISHES
METALS
SPECTROSCOPY
TRANSITION ELEMENTS
VERTEBRATES