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钯-碳催化剂以硝酸-高氯酸湿法氧化处理后,用标准加入法作空气-乙炔火焰原子吸收测量。对试样混合酸处理用量和测定条件及精确度作了考察。钯含量约0.3％的试样五次重复测定的最大相对标准偏差约±3％。本法较习用的王水萃取处理法简便可靠。
After the palladium-carbon catalyst was wet-oxidized with nitric acid-perchloric acid, air-acetylene flame atomic absorption measurements were made using the standard addition method. The amount of mixed acid treatment sample and the determination of the conditions and accuracy were investigated. The maximum relative standard deviation of five replicates of a sample with a palladium content of about 0.3% was about ± 3%. This method is more used aqua regia extraction method is simple and reliable.