Instrumental and preconcentration NAA methods for selenium in biological materials

Conference · Fri Jan 01 04:00:00 EST 1988 · Transactions of the American Nuclear Society; (USA)

OSTI ID:5606389

Chatt, A ^[1]

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1. Dalhousie Univ. (Canada)

At present, selenium is known to be a normal component of several enzymes, proteins, and some aminoacryl transfer nucleic acids. Certain selenium compounds have been reported to possess anticarcinogenic properties, slow the aging process, strengthen the immune system, enhance the sexual functions, etc. In order to understand the role of selenium in human and animal metabolism, analytical methods of high precision and accuracy and of excellent sensitivity are being sought. Neutron activation analysis (NAA) has many advantages that can be exploited for determining selenium. In general, instrumental NAA (INAA) is sensitive enough for the determination of selenium in most biological materials. The determination of very low levels of selenium, e.g., less than 30 ppb, in the presence of large amounts of interfering elements such as sodium, bromine, chlorine, etc., can be facilitated by preconcentration NAA. The technique can also provide superior precision.

• OSTI ID: 5606389
• Report Number(s): CONF-880601--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (USA) Journal Volume: 56
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400700 -- Radiochemistry & Nuclear Chemistry
550500* -- Metabolism
59 BASIC BIOLOGICAL SCIENCES
ACTIVATION ANALYSIS
ANIMALS
BIOLOGICAL MATERIALS
BODY
CHEMICAL ANALYSIS
CHEMISTRY
DIGESTIVE SYSTEM
ELEMENTS
ENZYMES
GLANDS
LIVER
MATERIALS
METABOLISM
ORGANS
RADIOCHEMISTRY
SELENIUM
SEMIMETALS
VITAMIN E
VITAMINS