摘要
本文提出了用0.5ml N-正辛基苯胺-间二甲苯萃取岩石矿物中超痕量钯铂的石墨炉原子吸收分析方法。对萃取钯铂的条件、其它离子的干扰情况以及在HGA-500型石墨炉中测定钯铂的最佳条件进行了研究。样品用盐酸过氧化氢分解后,溶液进行萃取,有机相直接测定。大量的其它离子不干扰测定。方法的绝对灵敏度釲为5.5pg/1%吸收、铂为40pg/1%吸收,可检测0.0001g/t的钯及0.0005g/t的铂。对含钯0.002g/t 0.006g/t铂矿样重复溶解样品测定11次,其相对标准偏差分别为钯4.9%、铂5.6%。
A rapid and selective method of extracting ultratrace amounts of palladium and platinum into 0.5ml is described for determination of palladium and latinum in rock and mineral by electrothermic graphite furnace atomic absorption spectrophotometric. N-OctylPhenylamine-1, 3-Dimethylbenzene is used extraction agent. Interfering Conditions about 30 ions were examined in detail. The detection limit: 0.0001g/t for palladium, 0.0005g/t for Platinum, and the absolut sensitivity: 5.4pg/1% absorption for palladium, 40pg/1% absorption for platinum. The relative standard deviation: 4.9% for sample Containing 0.002g/t (n=11) for palladium, 5.6% for sample containing 0.006g/t (n=11) for platinum. some samples have been determined with satisfactory results using the method.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1989年第1期48-51,共4页
Spectroscopy and Spectral Analysis
