金橙G螯合树脂分离富集样品中铂、铑的研究

Research on separation and enrichment of platinum and rhodium in samples with orange G chelating resin

合成了金橙G螯合树脂,并用于分离富集样品中的铂、铑。实验研究表明,分离富集试液酸度为pH 1.0、分离柱高为200 mm、通过分离柱的试液流速为0.4 mL/min时,加入铂、铑标准物质的回收率在94.5%～103%之间。标准样品经金橙G螯合树脂分离富集后,采用极谱法连续测定铂、铑,测定结果与标准值相吻合。

Orange G chelating resin is synthesized to separate and enrich platinum and rhodium in geological samples.Experimental researches show that when the pH value of the test solution is 1.0,the height of separating column is 200 mm,the flow velocity of the test solution through the separating column is 0.4 mL/min,the recovery rate of standard platinum and rhodium material is between 94.5 %~103 %.After the separation and enrichment with orange G chelating resin,the polarography measurement results of platinum,rhodium accord with the standard values.