Arsenic speciation in moso bamboo shoot--a terrestrial plant that contains organoarsenic species

The Science of the Total Environment
Rui ZhaoXinrong Zhang

Abstract

Arsenic is predominantly found as an inorganic species in most terrestrial plants. However, we found that a significant proportion of organic arsenic was present in moso bamboo (Phyllostachys pubescens Mazel) shoot in a market survey of arsenic species in edible terrestrial plants. Moso bamboo shoots from different producing areas in China were collected for analysis to confirm the ubiquity of methylated arsenic species. The total arsenic concentrations of bamboo shoots were determined by hydride generation coupled atomic fluorescence spectrometry (HG-AFS), ranging from 27.7 to 94.0 microg/kg. Information about arsenic species was acquired from cold trap-hydride generation-atomic absorption spectrometry (CT-HG-AAS). Dimethylarsinic acid (DMA) was present in the amount of 13.9% to 44.9% of sum of the arsenic species in all these samples. Monomethylarsonic acid (MMA) and trimethylarsine oxide (TMAO) were also detected in certain samples in the range of 4.2-16.5% and 11.8-18.4%, respectively. In addition, bamboo shoots collected in winter were found to have more total arsenic and organic arsenic than those collected in spring. To investigate the source of the organic arsenic in moso bamboo shoots, arsenic species in the rhizospher...Continue Reading

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Citations

Dec 24, 2008·Environmental Geochemistry and Health·E SmithJ Weber
Nov 6, 2010·Environmental Geochemistry and Health·Sun Hwa HongKyung-Suk Cho
Oct 28, 2008·The Science of the Total Environment·Lukasz JedynakJerzy Golimowski
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Feb 12, 2014·Environmental Science. Processes & Impacts·Sara García-Salgado, M Ángeles Quijano
Mar 26, 2013·Environmental Science & Technology·Fang-Jie ZhaoAndrew A Meharg

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