Flotation of traces of silver and copper(II) ions with a methyl cellosolve solution of dithizone.
Microgram quantities of silver and copper(II) ions in aqueous solutions are collected on dithizone precipitates, which are then floated with the aid of small nitrogen bubbles. This separation technique has been successfully applied to the atomic-absorption spectrophotometric determination of down to a tenth ppm of silver and copper in high-purity lead and zinc metals.
Hiraide
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M
Faculty of Engineering, Nagoya University, Chikusa-ku, Nagoya, Japan.
Mizuike
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