贵金属间性质接近,共仔时测定常需预先分离,而同时分光光度测定既可免于分离又可提高工效,是光度法发展的重要方向之一。但已有的同时光度测钯、铂方法,有的操作较繁;有的需解联立方程;有的灵敏度较低;有的所用试剂合成较难。文献用PAR仅单独测钯,且许多离子有干扰。文献先后用PAR及SnCl_2分别测钯、铂,但对铂的灵敏度不高,钯的干扰亦未妥善消除。本文提出的方法则较简便、快速、精密和准确,有效地解决了问题。 Precious metals close to the nature of the total determination of Aberdeen often need to be separated in advance, while spectrophotometry can be both free from separation but also improve ergonomics, photometric method is one of the important directions of development. However, at the same time, photometry has been used to measure palladium and platinum, and some operations are complicated; some require simultaneous equations; some have lower sensitivity; and some reagents are more difficult to synthesize. The literature only uses palladium to measure palladium alone, and many ions interfere. The literature has been using PAR and SnCl_2 were measured palladium, platinum, but the sensitivity of platinum is not high, palladium interference has not been properly eliminated. The method proposed in this paper is simple, fast, precise and accurate, effectively solve the problem.