| The content of Pd was determined through (1) wet digestion with HNO3-HClO4 or ignition at 700℃ to remove carbon, (2) dissolution of the residues by aqua regia and (3) determination of palladium by ICP-AES. Pretreatment of sample, accuracy and precision of the method were discussed. The additional standard recovery is 99%~101%, RSD <1%. The method is simple, accurate and fast. |
