论文部分内容阅读
本文合成了海绵状开孔型的高分子量叔胺泡沫塑料,研究了叔胺泡沫塑料对试液中[AuCl_4]~-、[PtCl_6]~(2-)、[PdCl_4]~(2-)的富集行为,试验了不同酸和30余种金属离子对富集的影响,结果表明,在HCl介质中对[AuCl_4]-、[PtCl_6]~(2-)和[PdCl_4]~2-有很高的富集效果,同时与大量的基体元素分离。富集的金、铂和钯络阴离子能被硫脲溶液定量解脱,形成亲水性的金、铂、钯硫脲络合物,解脱相适宜直接用石墨炉电热原子吸收法连续测定。
In this paper, sponge-like open-cell high molecular weight tertiary amine foam was synthesized. The effect of tertiary amine foam on the adsorption of [AuCl_4] ~ [PtCl_6] ~ [PdCl_4] Enrichment behavior of different acids and more than 30 kinds of metal ions on the enrichment of the results showed that in the HCl medium [AuCl_4] -, [PtCl_6] ~ (2) and [PdCl_4] ~ 2 is very High enrichment effect, while separated from a large number of matrix elements. The enriched gold, platinum and palladium anions can be quantitatively released by the thiourea solution to form hydrophilic complexes of gold, platinum and palladium thiourea. The release phase is directly determined by graphite furnace electrothermal atomic absorption spectrometry.