Amperometric, bipotentiometric, and coulometric titration

Abstract

This survey covers the period from the previous review (229) through Oct 1983. The order of treatment is the same as in that review. Unless otherwise specified, potentials are with respect to the saturated calomel electrode (SCE).Reviews of amperometric methods include drug analysis (120), the monitoring of the composition of alloys (177), and the determination of the platinum metals ( 56). An examination of the effect of the rate of amperometric titration on the position of the equivalence point has led to the conclusion that this rate can be increased without a marked decrease in accuracy (41). Other reviews concern oscillopolarographic (69,

On-column conductivity detector for capillary zone electrophoresis

“…Conductivity is well-recognized as a universal detector in liquid chromatography (4) and the first experiments by Mikkers et al (1) employed a potential drop between two electrodes separated along the flow direction. More recently, Bocek and co-workers (5) have described the use of a conductivity cell into which the capillary is connected.…”

A backward look at scientific instrumentation

“…His only "indicator" was the highly subjective experience of electric shock! Much later came developments such as highprecision absolute measurements, conductometric titrimetry, and conductometric monitoring (23). 'Monitoring that uses the marked change in conductivity caused by the presence of very low concentrations of electrolytes is crucial for the assessment of the quality of distilled or demineralized water.…”

“…The massive literature on coulometric titration (41,42) contains many examples of automation or mechanization (43,44). Apparently, the first example (not a constantcurrent device) was that shown diagrammatically in Figure 10.…”