Document Detail


Development and Single Laboratory Validation for Thermoluminescence Detection of Irradiated Foods Using X-ray Irradiation.
MedLine Citation:
PMID:  21383529     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The thermoluminescence (TL) method using X-rays was investigated for the purpose of detection of irradiated food, and the method was validated at a single laboratory level. A small X-ray irradiator was developed as an alternative radiation source for normalization, and X-ray irradiation conditions equivalent to gamma-ray irradiation from (60)Co were established. Gamma-ray irradiated spices were used for the method validation. The detection limits (MDL) and lower limit of integrated TL intensities (MDL×10) for the spices were checked and the separation of silicate minerals from the spices was confirmed to be sufficient for TL analysis. There was no significant difference in TL glow ratio obtained using two sets of X-ray irradiation equipment including the newly developed equipment. Repeatability and intermediate precision showed no influence of analysts, X-ray irradiation equipments, or measurement days on the TL ratios. From these results, this detection method was validated in a single laboratory.
Authors:
Hiroshi Sakabe; Yoshitane Mori; Kimie Saitou; Setsuko Todoriki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan     Volume:  52     ISSN:  1882-1006     ISO Abbreviation:  Shokuhin Eiseigaku Zasshi     Publication Date:  2011  
Date Detail:
Created Date:  2011-03-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0142214     Medline TA:  Shokuhin Eiseigaku Zasshi     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  18-23     Citation Subset:  IM    
Affiliation:
Food and Agricultural Materials Inspection Center.
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