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|Title: ||Selective silver ion transfer voltammetry at the polarised liquid vertical bar liquid interface|
|Authors: ||Sherburn, Amanda|
Arrigan, Damien W.M.
Boag, Neil M.
Dryfe, Robert A.W.
|Issue Date: ||2003|
|Publisher: ||© Royal Society of Chemistry|
|Citation: ||SHERBURN, A., PLATT, M. and ARRIGAN, D.W.M. ... et al, 2003. Selective silver ion transfer voltammetry at the polarised liquid vertical bar liquid interface. Analyst, 128 (9), pp.1187-1192.|
|Abstract: ||Transfer of silver ions across the water¡1,2-dichloroethane interface was studied by cyclic voltammetry (CV). In
the absence of added neutral ionophore, Ag+ transferred across the interface when the organic phase contained
either tetraphenylborate or tetrakis(4-chloro)phenylborate anions, but this transfer was not possible in the presence
of organic phase hexafluorophosphate or perchlorate anions. The ion transfer processes observed were independent
of the nature of the organic phase cation. The CV in the presence of tetraphenylborate exhibited a shape consistent
with an ion transfer followed by chemical reaction; the rate constant for the following chemical reaction was 0.016
s21. In the presence of tetrakis(4-chloro)phenylborate, a return peak equivalent in magnitude to the forward peak
was observed, indicative of a simple ion transfer reaction uncomplicated by accompanying chemical reactions.
The selectivity of the transfer was assessed with respect to other metal cations: no transfers for copper, cadmium,
lead, bismuth, cobalt, nickel, palladium or zinc were observed. The selectivity of the transfer suggests this can
form the basis of a selective voltammetric methodology for the determination of silver ions.|
|Description: ||This article is closed access.|
|Version: ||Closed access|
|Publisher Link: ||http://dx.doi.org/10.1039/b301832f|
|Appears in Collections:||Closed Access (Chemistry)|
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