Elution of Cs and Sr from tea leaves (Camellia sinensis (L.) Kuntze) to green tea evaluated by PIXE analysis

Autor:	M. Sato, Keizo Ishii, Atsuki Terakawa, K. Sera, H. Ushijima
Rok vydání:	2018
Předmět:	010302 applied physics Horticulture Elution Chemistry 0103 physical sciences Internal radiation Camellia sinensis Green tea 01 natural sciences 010305 fluids & plasmas Tea leaf
Zdroj:	International Journal of PIXE. 28:101-106
ISSN:	1793-6616 0129-0835
DOI:	10.1142/s0129083518500195
Popis:	We performed a particle-induced X-ray emission (PIXE) analysis of tea leaf samples (Camellia sinensis (L.) Kuntze) to evaluate the possibility of internal radiation exposure due to the intake of green tea contaminated with [Formula: see text]Cs and [Formula: see text]Sr. The tea leaf samples were obtained from tea trees (Camellia sinensis cv. ‘Yabukita’) cultivated with stable Cs and Sr added to the soil. We prepared the used leaf samples which were placed in distilled hot water (90[Formula: see text] for 1 min) as well as the unused leaf samples. The results of PIXE analysis combined with the internal standard method using Indium as a standard element showed little elution of Ca and Sr from the leaves to green tea, while the concentration of alkali elements, including Cs in the leaf, decreased by 30–40% after the tea was extracted.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1b0549a7e1e6d3daab4a4bb79769942b https://doi.org/10.1142/s0129083518500195 Zobrazit plný text záznamu Plný text ve formátu PDF