Enhancement effect of organic solvents in inductively coupled plasma atomic emission spectrometry |
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| Authors: | Takahiro Kumamaru Yasuaki Okamoto Yuroku Yamamoto Fumio Nakata Yoko Nitta Hiroshi Matsuo |
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| Affiliation: | (1) Department of Chemistry, Faculty of Science, Hiroshima University, 1-1-89 Higashisenda-machi, Naka-ku, 730 Hiroshima, Japan;(2) Division of Interdisciplinary Studies of Natural Sciences, Faculty of Integrated Arts and Sciences, Hiroshima University, 1-1-89 Higashisenda-machi, Naka-ku, 730 Hiroshima, Japan |
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| Abstract: | Summary The enhancement factors of various organic solvents in inductively coupled plasma atomic emission spectrometry (ICP-AES) were measured for diethyldithiocarbamate-cadmium(II) or mercury(II)-solvent systems by comparing the maximum emission intensity of an extract with that of the corresponding aqueous solution. The correlation between the enhancement factors obtained and physical parameters of the solvents were investigated. Among them, the best inverse linear relationship existed between log dielectric constant and log enhancement factor. The plot of log (boiling point x viscosity) vs. log enhancement factor also resulted in a line with a negative slope except water. Carbon tetrachloride, chlorofom and xylene, which gave much larger enhancement factors, were recommended for the use in ICP-AES.
Verstärkungseffekt durch organische Lösungsmittel in der ICP-AES |
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