The role of metallic matrix modifiers in graphite furnace atomic absorption spectrometry |
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| Authors: | Yosuke Morishige Kichinosuke Hirokawa and Kazo Yasuda |
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| Institution: | (1) Institute for Materials Research, Tohoku University, Katahira, Sendai, Japan;(2) Instrumental Division, Hitachi, Ltd. Ichige Katsuta, Ibaraki, Japan |
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| Abstract: | The role of metallic matrix modifiers in AAS is considered; for elements reduced, together with modifier elements, during ashing and the beginning of the atomization process, the thermodynamic activity and melting points of the alloys formed are important. For Mg2+, prevention of the effects of halide ions is considered, as is also the behaviour of buffer and/or carrier in emission spectrometric analysis of the other alkali and alkaline earths. |
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