Volumetric Determination of Thorium by High Frequency Titrimetry

Abstract

This investigation was undertaken to illustrate how conventional analytical procedures may be simplified or shortened by use of high frequency titration.An indirect volumetric method for the determination of thorium

The Academic Tree of Howard V. Malmstadt: From Early Scientific Exploration to Modern Analytical Chemistry

“…In the laboratory of Walter Blaedel, Malmstadt first applied his knowledge of electronics gained in the Navy to chemical instrumentation. [8][9][10][11][12][13] Working mostly with titration measurements, Malmstadt devised ways to make measurements of the endpoints of these experiments rapidly and precisely. Many of these studies, which he continued as a professor at the University of Illinois, 9,14,15 laid the groundwork for the commercial Sargent auto-titrator, an instrument that would be found in many laboratories around the world in the decades to follow.…”

“…At the University of Wisconsin, Malmstadt and others worked in Blaedel's group to make rapid and repeated measurements, [8][9][10][11][12][13] a staple of modern analytical chemistry. This theme was retained as Blaedel shifted from titrations and photochemistry to electrochemistry later in his career.…”

Inorganic Microchemistry

“…This titrant should also be well adapted to use with high-frequency oscillators which hold promise for microchemical work on the basis of their sensitivity and because they obviate difficulties often associated with electrodes of potentiometric or conductometric titrators. In general, high frequency methods hold greatest promise where lack of suitable indicators or electrode systems has restricted the use of titrimetry as, for example, in the case of the titrimetric determinations of thorium (16) and sulfate (126).…”