Comparative study on methods for cadmium analysis of grain with an application to pollution evaluation

Journal Article · Mon Dec 31 23:00:00 EST 1973 · Environ. Res.; (United States)

DOI:https://doi.org/10.1016/0013-9351(74)90066-8· OSTI ID:6594516

Kjellstroem, T; Lind, B; Linnman, L; Nordberg, G

A study was performed to compare 3 variations of atomic absorption spectrophotometry (AAS): the conventional flame technique, the conventional technique involving ammonium-pyrrolidine dithiocarbonate-methyl isobutyl ketone (APDC-MIBK) extraction, and a flameless technique involving a heated graphite atomizer in the analysis of cadmium in wheat. Radioactive /sup 109/Cd was utilized in order to study the losses in the various analytical procedures. The heated graphite atomizer method gave the best recovery (95%) and the smallest difference between duplicate samples. A comparison was also made between the atomic absorption methods and a neutron activation method, as well as a dithizone colorimetric method. The heated graphite atomizer method was used to study the cadmium concentration in wheat, oats, and barley in polluted and nonpolluted areas. Higher cadmium concentrations were found in the polluted areas. A discussion of obtained differences is given.

• Research Organization: National Environmental Protection Board, Stockholm, Sweden
• OSTI ID: 6594516
• Journal Information: Environ. Res.; (United States), Journal Name: Environ. Res.; (United States) Vol. 8:1; ISSN ENVRA
• Country of Publication: United States
• Language: English

Related Subjects

500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION SPECTROSCOPY
ACTIVATION ANALYSIS
BARLEY
BETA DECAY RADIOISOTOPES
BIOLOGICAL ACCUMULATION
BIOLOGICAL INDICATORS
CADMIUM
CADMIUM 109
CADMIUM ISOTOPES
CEREALS
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EVEN-ODD NUCLEI
GRAMINEAE
GRASS
INTERMEDIATE MASS NUCLEI
ISOTOPE APPLICATIONS
ISOTOPES
LABELLING
METALS
NUCLEI
OATS
PLANTS
RADIOISOTOPES
SPECTROSCOPY
TRACER TECHNIQUES
WHEAT
YEARS LIVING RADIOISOTOPES