Determination of Trace Amounts of Copper(II) in Water Samples by Graphite Furnate Atomic Absorption Spectrometry after preconcentration onto The Interface between Aqueous Phase nd Organic Phase Using Chitosan. IUPAC International Congress on Analytical Science 2001, Waseda University, Tokyo Japan. 2001
Determination of Trace Amounts of Copper(II) in Water Samples by Graphite Furnate Atomic Absorption Spectrometry after preconcentration onto The Interface between Aqueous Phase nd Organic Phase Using Chitosan. IUPAC International Congress on Analytical Science 2001, Waseda University, Tokyo Japan. 2001
Electrothermal atomic absorption spectrometric determination of cadmium after preconcentration onto zeolite. 2000 International Chemical Congress of Pacific Basin Societies, Honolulu, Hawai,. 2000