Rice uptake of aromatic arsenicals from soil contaminated by diphenylarsinic acid

摘要：

We investigated the uptake of aromatic arsenicals by rice from soil contaminated with diphenylarsinic acid (DPAA). We detected methylphenylarsinic acid (MPAA) in brown rice, husks, and straw of rice grown in contaminated soil under flooding, and dimethylphenylarsine oxide (DMPAO) and methyldiphenylarsine oxide (MDPAO) in straw. We detected DPAA, phenylarsonic acid (PAA), MPAA, MDPAO, and DMPAO in HNO<3> extract of soil. Less DPAA and PAA in soil was extracted with water than MPAA, DMPAO, and MDPAO, so the bioavailability of DPAA and PAA in soil would be lower than that of MPAA, DMPAO, and MDPAO.

关键词： diphenylarsinic acid diphenylmethylarsinic oxide dimethylphenylarsinic oxide rice phenylmethylarsinic acid agricultural soil

作者: Tomohito Arao Yuji Maejima Koji Baba

作者单位: National Institute for Agro-Environmental Sciences (NIAES), 3-1-3 Kannondai, Tsukuba, Ibaraki, 305-8604, Japan

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 814-815

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）