SEPARATION/PRECONCENTRATION AND DETERMINATION OF TRACE AMOUNTS OF PALLADIUM USING MODIFIED ALUMINA COATED MAGNETITE NANOPARTICLES WITHOUT CHELATING AGENT

Journal of The Chilean Chemical Society

HATEFI-MEHRJARDI, ABDOLHAMID¹  KAFI, MANIJEH²  KARIMI, MOHAMMAD ALI² 

[1] Payame Noor University, Sirjan, Iran;Payame Noor University, Tehran, Iran

关键词: Solid-;    phaseextraction;    Alumina-;    coated magnetite nanoparticles;    Palladium(II);    Flameatomic absorption spectrometry;   

DOI  :  10.4067/S0717-97072014000100002

学科分类：化学（综合）

来源: Sociedad Chilena de Quimica

【 摘 要 】

In the present article, a simple,rapid, selective, sensitive and economical method has been developed for theseparation/preconcentration of the trace amounts of Pd(II) in different realsamples using alumina coated magnetite nanoparticles modified by sodium dodecylsulfate and its determination by flame atomic absorption spectrometry aftereluting with 1.0 mol L-1 thiourea. Under the optimal experimental conditions, the preconcentration factor, detection limit, linear rangeand relativestandard deviation of Pd(II) were 280 (for 700 mL of sample solution), 4.3ngmL-1, 6.0 - 120.0 ng mL-1 and 4.6%(for 10ng mL-1, n=10), respectively.

【 授权许可】

Unknown