Quality assurance program for the determination of selenium in foods and diets by instrumental neutron activation
Journal Article
·
· Transactions of the American Nuclear Society
OSTI ID:436785
- Dalhousie Univ., Halifax, Nova Scotia (Canada)
The biological essentially of selenium for animals was first evidenced in 1957. However, it was not until 1973 that an enzyme called glutathione peroxidase was proven to be a selenoenzyme. At present, selenium is known to be a normal component of several enzymes, proteins, and some aminoacryl transfer nucleic acids. A few selenium compounds have been reported to possess anticarcinogenic properties. There is an increasing interest in understanding the role of selenium in human nutrition and metabolism. Analytical methods are being developed in several laboratories for the determination of total and species-specific selenium in whole blood, serum, urine, soft and hard tissues, food, water, proteins, etc. We have developed several instrumental neutron activation analysis (INAA) methods using the, Dalhousie University SLOWPOKE-2 reactor facility for the determination of parts-per-billion levels of selenium. These methods include cyclic INAA (CINAA) and pseudocyclic INAA (PCINAA) using both conventional and anticoincidence gamma-ray spectrometry. Considering the immense health significance, it is imperative that the selenium levels in foods and diets be measured under an extensive quality assurance program for routine monitoring purposes.
- OSTI ID:
- 436785
- Report Number(s):
- CONF-9606116--
- Journal Information:
- Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 74; ISSN 0003-018X; ISSN TANSAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Instrumental and preconcentration NAA methods for selenium in biological materials
Glutathione peroxidase response in tissues of rats fed diets containing fish protein concentrate prepared from shark flesh of known mercury and selenium contents
Thioacetamide-induced cirrhosis in selenium-adequate mice displays rapid and persistent abnormity of hepatic selenoenzymes which are mute to selenium supplementation
Conference
·
Thu Dec 31 23:00:00 EST 1987
· Transactions of the American Nuclear Society; (USA)
·
OSTI ID:5606389
Glutathione peroxidase response in tissues of rats fed diets containing fish protein concentrate prepared from shark flesh of known mercury and selenium contents
Journal Article
·
Wed Dec 31 23:00:00 EST 1980
· Bull. Environ. Contam. Toxicol.; (United States)
·
OSTI ID:6594201
Thioacetamide-induced cirrhosis in selenium-adequate mice displays rapid and persistent abnormity of hepatic selenoenzymes which are mute to selenium supplementation
Journal Article
·
Mon Oct 01 00:00:00 EDT 2007
· Toxicology and Applied Pharmacology
·
OSTI ID:21077815