Analytical Sciences


Abstract − Analytical Sciences, 22(3), 475 (2006).

Concentrations of Arsenic in Brackish Lake Water: Application of Tristimulus Colorimetric Determination
Md. Mustafizur RAHMAN,* Yasushi SEIKE,** and Minoru OKUMURA**
*Interdisciplinary Graduate School of Science and Engineering, Shimane University, Matsue 690-8504, Japan
**Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue 690-8504, Japan
The evaluation of a simple and rapid tristimulus colorimetric method for the determination of arsenic in brackish waters and its application to brackish water samples taken from brackish Lake Nakaumi are described. The determinations of arsenic in brackish water samples were made satisfactorily independent of sample salinity. By applying this method to lake water samples, the distributions and behaviors of arsenic in the lake and their controlling factors were clarified, such as seasonal variations of arsenic and the effect of a typhoon.