
TY  - JOUR
A1  - Bates, MRM 
A1  - Cardwell, TJ 
A1  - Cattrall, RW 
A1  - Deady, LW 
A1  - Murphy, K 
T1  - Studies on Cation Selectivities of Some Pyridine-Based Ionophores for Use in Polymer Membrane Chemical Sensors
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1991
VL  - 44
IS  - 11
SP  - 1603
EP  - 1613
KW  - 
UR  - https://doi.org/10.1071/CH9911603 
N2  - The synthesis of some macrocyclic compounds based on 4-octyloxypyridine-2,6-dicarboxylic acid, containing sulfur and/or oxygen atoms in the 2 to 6-bridging unit, along with some non-cyclic analogues is reported. These were tested for cation selectivity in poly(vinyl chloride)-based membrane electrodes. Little selectivity was found for any ion with the oxygen-containing compounds, and none approached the selectivity for potassium reported previously for a related compound. High bonding affinities for class b acceptors, particularly Ag+ and Hg2+, were found for sulfur-containing compounds. The complexation with Hg2+ was so strong that the electrodes showed behaviour characteristic of an anion response. 
ER  -

