超支化聚合物吸附金、铂和钯及化学光谱行为的研究

超支化聚合物在盐酸介质中分离富集金、铂和钯，具有吸附速度快、吸附容量大的特点。将吸附后的树脂灰化，用碳粉、硫酸锶和氧化锆作缓冲剂, 采用发射光谱法同时测定金、铂和钯，选择锆作内标线，直接压样于杯形的石墨电极中，测定简便、快速和准确。对测定条件、干扰因素进行了研究，以此建立测定金、铂和钯的新方法。金、铂和钯的分析线分别为312.3, 306.5和311.4 nm，内标线选择为310.7 nm的锆，金、铂和钯的线性范围分别为0～0.20%，0～0.40%和0～0.20%。金、铂和钯的检测限分别为0.010%，0.003%和0.003%。用于样品的测定获得了满意结果。

Atomic Emission Spectrometry Determination of Au, Pt and Pd after Separation and Enrichment by Hyperbranched Polymer

The present paper shows that the trace amount of gold, platinum and palladium in hydrochloric acid solution can be concentrated by hyperbranched polymer. The new reagent has a rapid adsorption rate and big concentrating capacity. The determination of trace Au, Pt and Pd in sample using carbon powder and strontium carbonate as buffer was carried out by atomic emission spectrometry(AES). Zirconium was selected as internal standard line. The sample was directly loaded into ordinary electrode. The method is simple, rapid and accurate. The condition of determination, and factors of influence were studied. The analysis line of Au, Pt and Pd is 312.3, 306.5 and 311.4 nm respectively. The internal standard line of Zr is 310.7 nm. The linear range of the determination of Au, Pt and Pd is 0-0.20%, 0-0.40% and 0-0.20% respectively. The detection limit of Au, Pt and Pd is 0.010%, 0.003 0% and 0.003 0% respectively. The method has been applied to the determination of Au, Pt and Pd with satisfactory results.