Rapid determination of aluminium in beryllium metal by cathode ray polarography

Abstract

A rapid method is presented for the determination of aluminium in beryllium metal by cathode ray polarography using the dye Superchrome Garnet Y. A mercury cathode electrolysis is used to remove heavy metal impurities, but the need for a separation of aluminium from beryllium is avoided. A single determination requiring a 100 mg sample may be completed in little over an hour, with normal polarographic precision.