【摘要】 在3.0～5.2mol/L的磷酸介质中,室温下Pd能与邻磺酸偶氮若丹宁反应,生成桔红色络合物,可据此测定Pd的含量。方法摩尔吸光系数为5.1×104 L穖ol-1穋m-1,在0～35μg Pd/10mL范围内符合比耳定律。较大量的共存Pt不干扰Pd的测定。在水浴加热至100℃时,Pd与Pt均能与邻磺酸偶氮若丹宁发生显色反应,借此建立了同时测定Pt与Pd的方法。将该法用于Pt、Pd回收废液中Pd和Pt的测定,结果令人满意。更多还原

【Abstract】 In 3.0～5.2mol/L H3PO4 medium palladium reacts with o-sulphobenazorhodanine to form an orange-red complex at room temperature. The apparent molar absorptivity is 5.1?04. L穖ol-1穋m-1. Beer抯 law is obeyed in the range of 0～35μg Pd/10mL. Relatively large amounts of coexisting Pt can be tolerated. Heating in water bath to 100℃,Pt and Pd all react with o-sulphobenazorhodanine to form color complex. A method for the determination of Pd and Pt has proposed simultaneously . The method has been applied to determination of Pd and Pt in the recovered liquid with satisfactory results.更多还原