ABSTRACT
An electrode selective for lithium relative to other alkali metal ions is described. The sensor is based on n-decanol as both the liquid membrane and exchanger. The electrode exhibits more than 3 decades of linear near-Nernstian response and has selectivity comparable to the LAS 15-25 glass univalent-cation electrode.
ABSTRACT
A new liquid-membrane ion-selective electrode for perchlorate ion based on tetrakistri-phenylphosphine silver(I) perchlorate in nitrobenzene is described. Its dynamic range and selectivities relative to most common anions are comparable to those of the Orion model 92-81 perchlorate sensor. However, it suffers much less hydroxide-ion interference than the Orion product.
ABSTRACT
The stability constants of the complexes of silver(I), zinc(II), cadmium(II) and manganese(II) with ethylenediamine in dimethylsulphoxide at 25 degrees and ionic strength 0.1Mhave been determined potentiometrically. The stability constants are consistently larger in DMSO than in water as expected from the difference in dielectric constant for the two solvents.
