Determination of Heavy Metals in Waters by Atomic Absorption Spectrophotometry Coupled with Membrane Filtration/Concentration |
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| Authors: | Shoji Motomizu Mitsuko Oshima Takashi Ohsaki |
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| Institution: | Department of Chemistry, Faculty of Science, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530 Japon |
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| Abstract: | Ultra trace amounts of heavy metals, such as Cu, Pb, were determined by graphite furnace-atomic absorption spectrophotometry (GF-AAS) after miniature membrane filer (MF) concentration/dissolution. Heavy metals were concentrated as pyrrolidine-dithiocarbamate (APDC) chelates on a miniature MF of which diameter was 5 mm, effec-tive filtering diameter was 2 mm and pore size was 2 μm. |
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