摘要
本文报道了罗丹宁纤维富集-极谱法测定矿石及冶金样品中Pd^4+的方法。对影响Pd^4+分离富集及极谱法测定的诸因素进行了研究,实验确定了最佳条件。方法测定Pd^4+的线性范围为2.5~600μg·L^-1,检出限为0.5μg·L^-1;将该法用于矿石及冶金样品中Pd^4+的分析测定,其结果与火试金法的测定结果吻合良好。本方法具有选择性好,灵敏度高,操作简便等特点,可用于Pd含量为0.02g·t^-1以上矿石和冶金样品中钯的测定。
A method based on rhodanine fiber preconcentration was developed for palladium analysis in ores and metallurgy samples by polarography. Factors affecting the separation/preconcentration have been investigated and the polarographic system has been optimized. Under the optimal condition, the analytical linear range of 2.5 μg·L^-1 to 600μg·L^-1 and detection limit of 0.5μg·L^-1 were obtained for Pd^4+ determination. The analytical results for ores and metallurgy samples were in good agreement with that obtained by fire-assaying method. The proposed method with the advantages of good selectivity, high sensitivity and convenient operation can be used for the determination of Pd^4+ above 0.02 got-1 in ores and metallurgy samples.
出处
《分析科学学报》
CAS
CSCD
2007年第6期693-696,共4页
Journal of Analytical Science
关键词
湿法富集
罗丹宁树脂
钯
极谱法
Wet preconcentration
Rhodanine fiber
Palladium
Polarography