Authors:
S. Laoharojanaphand Thailand Institute of Nuclear Technology, Ongkharak, Nakhon Nayok 26120, Thailand

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A. Busamongkol Thailand Institute of Nuclear Technology, Ongkharak, Nakhon Nayok 26120, Thailand

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V. Permnamtip Thailand Institute of Nuclear Technology, Ongkharak, Nakhon Nayok 26120, Thailand

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K. Judprasong Institute of Nutrition, Mahidol University, Salaya, Nakhonpathom, Thailand

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A. Chatt SLOWPOKE-2 Facility, Trace Analysis Research Centre Department of Chemistry, Dalhousie University, Halifax, NS B3H 4J3, Canada

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Abstract  

A pilot study was carried out to evaluate the scope of instrumental neutron activation analysis (INAA) for measuring the levels of selected elements in a few commonly consumed food items in Thailand. Several varieties of rice, beans, aquatic food items, vegetables and soybean products were bought from major distribution centers in Bangkok, Thailand. Samples were prepared according to the protocols prescribed by the nutritionist for food compositional analysis. Levels of As, Br, Ca, Cd, Cl, Cr, Cu, Fe, K, Mg, Mn, and Zn were measured by INAA using the irradiation and counting facilities available at the Thai Research Reactor with the maximum in-core thermal neutron flux of 3 × 1013 cm−2 s−1 of the Thailand Institute of Nuclear Technology in Bangkok. Selenium was determined by cyclic INAA using the Dalhousie University SLOWPOKE-2 Reactor facilities in Halifax, Canada at a thermal neutron flux of 2.5 × 1011 cm−2 s−1. Both cooked and uncooked foods were analyzed. The elemental composition of food products was found to depend significantly on the raw material as well as the preparation technique.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)