Preconcentration of Divalent Metal Ions for Flame AAS by Donnan Dialysis with Nafion Capillary Membrane.
| Authors | |
|---|---|
| Year of publication | 2002 |
| Type | Article in Proceedings |
| Conference | XVIth Slovak Spectroscopic Conference. Book of abstracts. |
| MU Faculty or unit | |
| Citation | |
| 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). |
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