Spatial distributions of cesium and strontium in tea [Camellia sinensis (L.) Kuntze] leaves evaluated by micro-PIXE analysis

Author:

Terakawa A.1,Momokita K.1,Hattori Y.1,Sato M.2,Ishii K.12,Koka M.3,Yamada N.3,Yamagata R.3,Ishii Y.3,Suzui N.3,Satoh T.3,Kawachi N.3

Affiliation:

1. Cyclotron and Radioisotope Center, Tohoku University, 6-3 Aza-Aoba Aramaki Aoba Ward, Sendai, Miyagi 980-8578, Japan

2. Research Center for Remediation, Engineering of Living Environment Contaminated with Radioisotopes, Tohoku University, 6-3 Aza-Aoba Aramaki Aoba Ward, Sendai, Miyagi 980-8578, Japan

3. Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, 1223 Watanuki, Takasaki, Gunma 3700-1292, Japan

Abstract

We evaluated the spatial distributions of cesium and strontium in tea leaves using micro particle-induced X-ray emission (micro-PIXE) analysis to explore the characteristics of the concentrations and translocations of these elements in tea leaves, and the similarities and differences between cesium and potassium and between strontium and calcium. We examined samples of tea [Camellia sinensis (L.) Kuntze] leaves that took up cesium and strontium via foliar absorption. We confirmed that calcium and strontium accumulated in many narrow areas of the leaves, while cesium and potassium were distributed throughout the leaf samples. Almost all of the strontium and calcium accumulated in the same narrow locations in the leaf samples 30 days after foliar absorption.

Publisher

World Scientific Pub Co Pte Ltd

Subject

General Medicine

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