Preconcentration of Divalent Metal Ions for Flame AAS by Donnan Dialysis with Nafion Capillary Membrane.

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Authors	NOVOTNÝ Karel KOMÁREK Josef
Year of publication	2002
Type	Article in Proceedings
Conference	XVIth Slovak Spectroscopic Conference. Book of abstracts.
MU Faculty or unit	Faculty of Science
Citation	NOVOTNÝ, Karel and Josef KOMÁREK. Preconcentration of Divalent Metal Ions for Flame AAS by Donnan Dialysis with Nafion Capillary Membrane. In XVIth Slovak Spectroscopic Conference. Book of abstracts. Košice, Slovakia: Technical University of Košice, 2002, p. 74.
Field	Analytic chemistry
Keywords	preconcentration; flame AAS; Donnan dialysis; Nafion membrane
Description	A preconcentration system based on Donnan dialysis with a capillary cation exchange Nafion membrane was developed. The (hydrated) divalent metal ions were preconcentrated from sample (donor) solution to acceptor solution prior to determination by flame AAS. Under optimal conditions of dialysis the enrichment factor (EF) of 106 with RSD of 2% for Cu(II) was reached. The EFs for Cd(II), Co(II), Ni(II) and Zn(II) were found to be similar to that for Cu(II).
Related projects:	Structure and character of bonding, properties and analysis of synthetic and natural molecular ensembles