We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Nickel(II) Selective PVC-Based Membrane Sensor Using a Schiff Base.
- Authors
Rezaei, B.; Hadadzadeh, H.; Azimi, A.
- Abstract
A polyvinylchloride (PVC) membrane optode was prepared by using 1,2-di(o-salicylaldiminophenylthio)ethane (H2DSALPTE) as a chelating reagent for selective determination of Ni(II) ions. The optimized membranes incorporating H2DSALPTE as an ionophore, sodium tetraphenylborate (NaTPB) as an anion excluder, and tributyl phosphate (TBP) as a solvent mediator were prepared and applied for determination of Ni(II) ions. The membrane responded to Ni(II) ion by changing the color from yellow to green in an acetate buffer solution at pH 6.0. The best performance was observed when the membrane having a composition of 3.17% ligand, 31.64% PVC, 63.29% TBP, and 1.90% NaTPB. The membrane can be worked well over a wide concentration range from 1.0×10-5 to 5.0×10-3 M. The membrane exhibited a detection limit of 8.51×10-6 M, and the response time of the membrane was within 7-12 min depending on the concentration of Ni(II) ions. The selectivity of the probe towards nickel determination was found to be very good. Experimental results showed that the probe could be used as an effective tool in analyzing the Ni(II) content of water samples.
- Subjects
POLYVINYL chloride; NICKEL; MEMBRANE reactors; SCHIFF bases; IONOPHORES; TETRAPHENYLBORATES
- Publication
International Journal of Spectroscopy, 2011, p1
- ISSN
1687-9449
- Publication type
Article
- DOI
10.1155/2011/746372