Journal
TALANTA
Volume 65, Issue 4, Pages 925-929Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2004.08.024
Keywords
solid phase extraction; Pd(II); thioridazine(.)HCl; membrane disk; atomic absorption spectrometry
Categories
Ask authors/readers for more resources
A new simple and reliable method for rapid and selective extraction and determination of trace level of Pd(II) ion is developed. Palladium ions are adsorbed quantitatively during passage of aqueous samples through octadecyl silica membrane disks modified with thioridazine-HCl (TRH). The influence of flow rates of eluent and sample solution, amount of ligand, types and least amount of eluent, and pH of samples were studied. Almost all matrix elements were found to pass through the disk to drain. Break through volume and limit of detection of the membrane disks modified by 5 mg of TRH was found to be 1.01 and 12 mug l(-1), respectively. The retained Pd(II) ions are then stripped from the disk with a minimal amount of sulfite solution as eluent and subsequently measured by atomic absorption spectrometry. The proposed method permitted large enrichment factors of about 100 and higher. The method was applied to the recovery of Pd(II) ions from different industrial samples and waters. (C) 2004 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available