Assessment of usefulness of synchrotron radiation techniques to determine arsenic species in hair and rice grain samples

Authors

  • Jun Lin Shanghai Institutes for Biological Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • Guo-fang Lin Shanghai Institutes for Biological Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
  • Yu-lan Li Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • Xiao-yan Gao Shanghai Institutes for Biological Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
  • Hui Du Prefecture Center of Disease Prevention and Control of Southwest Guizhou Ethnic Bouyei and Hmong Autonomous Prefecture, Xingyi, Guizhou 562400, China
  • Chao-gang Jia County Institute of Public Health Supervision of Xingren, Xingren, Guizhou 562300, China
  • Hong-chao Lu Prefecture Center of Disease Prevention and Control of Southwest Guizhou Ethnic Bouyei and Hmong Autonomous Prefecture, Xingyi, Guizhou 562400, China
  • Klaus Golka Leibniz-Institut für Arbeitsforschung an der TU Dortmund - Leibniz Research Centre for Working Environment and Human Factors, 44139 Dortmund, Germany
  • Jian-hua Shen Shanghai Institutes for Biological Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China

DOI:

https://doi.org/10.17179/excli2016-785

Keywords:

arsenic, speciation, synchrotron radiation, biogeochemical abnormality, arseniasis, micro-distribution

Abstract

The arseniasis in Southwest Guizhou, China has been identified as a unique case of endemic arseniasis caused by exposure to indoor combustion of high As-content coal. Present investigation targeted the microdistribution and speciation of the element arsenic in human hair and environmental samples collected in one of the hyper-endemic villages of arseniasis in the area. Analyses were performed by micro-beam X-ray fluorescence (μ-XRF) and X-ray absorption fine structure (XAFS). The total As level in hair samples of diagnosed patients was detected at almost the same level as in their asymptomatic neighbors. Concentrations in the lateral cut of hair samples were high-low-high (from surface to center). XAFS revealed the coexistence of both the As+3 and As+5 states in hair samples. However, the samples from patients displayed a tendency of higher As+3 / As+5 ratio than the asymptomatic fellow villagers. The μ-XRF mapping of rice grains shows that arsenic penetrates the endosperm, the major edible part of the grain, when rice grains were stored over the open fire of high As-content coal. Synchrotron radiation techniques are suitable to determine arsenic species concentrations in different parts of hair and rice grain samples. As arsenic penetrates the endosperm, rinsing the rice grains with water will remain largely ineffective.

Downloads

Published

2017-01-02

How to Cite

Lin, J., Lin, G.- fang, Li, Y.- lan, Gao, X.- yan, Du, H., Jia, C.- gang, … Shen, J.- hua. (2017). Assessment of usefulness of synchrotron radiation techniques to determine arsenic species in hair and rice grain samples. EXCLI Journal, 16, 25–34. https://doi.org/10.17179/excli2016-785

Issue

Vol. 16 (2017)

Section

Original articles

License

Authors who publish in this journal agree to the following terms:

  • The authors keep the copyright and grant the journal the right of first publication under the terms of the Creative Commons Attribution license, CC BY 4.0. This licencse permits unrestricted use, distribution and reproduction in any medium, provided that the original work is properly cited.
  • The use of general descriptive names, trade names, trademarks, and so forth in this publication, even if not specifically identified, does not imply that these names are not protected by the relevant laws and regulations.
  • Because the advice and information in this journal are believed to be true and accurate at the time of publication, neither the authors, the editors, nor the publisher accept any legal responsibility for any errors or omissions presented in the publication. The publisher makes no guarantee, express or implied, with respect to the material contained herein.
  • The authors can enter into additional contracts for the non-exclusive distribution of the journal's published version by citing the initial publication in this journal (e.g. publishing in an institutional repository or in a book).

Most read articles by the same author(s)