期刊
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
卷 86, 期 4, 页码 415-418出版社
SPRINGER
DOI: 10.1007/s00128-011-0233-z
关键词
Arsenic speciation; Vietnam; HPLC; AAS
资金
- National Foundation for Science and Technology (NAFOSTED), Vietnam [104.03.45.09]
A coupled High Performance Liquid Chromatography - Hydride Generation-Atomic Absorption Spectroscopy system was used to determine the speciation of Arsenic in samples from the Nha Trang Harbor, Vietnam. Concentrations of Arsenic in seawater, pore water, suspended solid, and sediment were 4.12-9.81 mu g/L, 13.10-24.32 mu g/L, 1.87-6.42 mu g/g, and 3.37-9.06 mu g/g, respectively. Extraction using H(3)PO(4) + NH(2)OH center dot HCl and ultrasonic digestion was optimized to yield a 76-85% of total Arsenic. Arsenic (III) was the most abundant species in suspended solids and sediments whereas Arsenic (V) represented for 30-50% of Arsenic (III) concentration. Monomethylarsonic acid and Dimethylarsinic acid species were undetectable.
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