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자료유형
학술저널
저자정보
이기창 (전남대학교) 박종흠 (한국원자력연구원) 은종방 (전남대학교) 송범석 (한국원자력연구원)
저널정보
한국방사선산업학회 방사선산업학회지 방사선산업학회지 제14권 제2호
발행연도
2020.1
수록면
107 - 115 (9page)

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This study was performed to evaluate the applicability of chemical identification methods, including gas chromatograph/mass spectrometry (GC/MS) and solid-phase microextraction (SPME) technique coupled with GC/MS, for soybeans gamma-irradiated at various doses ranging from 0.25 to 5 kGy. The thermoluminescence (TL) analysis, which is a formal physical identification method of irradiation treatment for soybeans, revealed that judgement on irradiation treatment was correctly made for soybean samples irradiated at higher than 0.25 kGy. However, judgement through this method could fail when the food was washed, heated, or exposed to light energy including visible and ultraviolet radiation. As alternative methods, chemical identification methods were applied by analyzing unique radiolytic compounds in irradiated food. Similar to the TL analysis results, all of the samples irradiated at ≥0.25 kGy were clearly identified as irradiated by the GC/MS analysis. Moreover, SPME-GC/MS analysis could be applied to identify gamma-irradiated soybeans at higher than 0.25 kGy, implying that the new method will attract more attention. This is because it is a easy and rapid identification method that does not use organic solvents to extract detection markers from irradiated food.

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