Polarographic determination of impurities in high-purity phosphorus |
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| Authors: | Miwa T Kono T Isomura R Mizuike A |
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| Affiliation: | Faculty of Engineering Nagoya University Chikusa-ku, NagoyaJapan. |
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| Abstract: | Square-wave and radio-frequency polarographic techniques in phosphoric acid-potassium chloride media are applied to the simultaneous determination of copper, lead and cadmium in highpurity red phosphorus down to a level of 0.1 ppm. In addition ca. 0.01 ppm of cadmium is determined by R.F. polarography in potassium sulphate base electrolyte after cation-exchange separation. |
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