Determination of Copper by Neutron Activation Analysis in Conjunction with Compton Suppression Gamma Spectrometry

Conference · Sun Jun 04 04:00:00 EDT 2000

OSTI ID:786132

Zhang, W H; Chatt, A

Copper is considered to be an essential element. Its accurate determination in tissues, foods, and other biological materials is needed to study the effect of copper on human nutrition and health. Using and Advance Prediction Computer Program, it has been shown that short-lived {sup 66}Cu (half-life = 5.09 min) can be used to determine copper in biological materials by instrumental neutron activation analysis (INAA). However, it is seldom done in practice-in particular, for low copper content in high-salt biological materials-because of the Compton background interference from nuclides such as {sup 28}Al, {sup 38}Cl, and {sup 24}Na. To eliminate the Compton interference, a preconcentration NAA method has recently been developed in our laboratory using reversed-phase extraction chromatography of copper followed by short irradiation and conventional gamma-spectrometric counting of {sup 66}Cu; the detection limit is {approx}5 ppb.

• Research Organization: Dalhousie University, Halifax, Nova Scotia (CA)
• Sponsoring Organization: none (US)
• OSTI ID: 786132
• Report Number(s): none; ISSN 0003-018X; CODEN TANSAO; ISSN 0003-018X; CODEN TANSAO
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BIOLOGICAL MATERIALS
COMPTON EFFECT
CONCENTRATION RATIO
COPPER
COPPER 66
EXTRACTION CHROMATOGRAPHY
GAMMA SPECTROSCOPY
INHIBITORS
NEUTRON ACTIVATION ANALYSIS
SAMPLE PREPARATION