Ion-selective electrodes in organic analysis-determination of xanthate.
A PVC membrane xanthate-selective electrode has been developed for the direct determination of xanthates of primary and secondary alcohols. The xanthate electrode is highly selective and exhibits a Nernstian response in the range 5.0 x 10(-2)-7.1 x 10(-5)M xanthate with a slope of 58.6 mV per concentration decade. The electrode has a wide working pH range (5.0-11.5), a fast response time (less than 30 sec) and is stable for at least two months.
Chan
W H
WH
Department of Chemistry, Hong Kong Baptist College, 224 Waterloo Road, Kowloon, Hong Kong.
Lee
A W
AW
Fung
K T
KT