Application of the Photo–Electric Cell to Automatic Titrations¹

Short course on the history of analytical chemistry and the related sciences

“…Therefore the item shown in Figure 4 is considered relevant. This is an electromagnetically operated buret valve described in 1928 (9). Actually, the treatment of volumetric analysis ends with a comment that automatic titrations, useful in routine analyses, date back more than 60 years (10).…”

Development of Commerical Automatic Colorimetric Titrator

“…Although there has been considerable work in recent years in this field (3,4,6,(9)(10)(11), the first was done some 30 years ago by Muller and Partridge (7). The principles are still the same, but a different approach using new techniques and new components has led to the development of a useful commercial device.…”

Automatic Spectrophotometric Titration of Fluoride, Sulfate, Uranium, and Thorium

“…Previous workers, probably the first of whom were Mfiller and Partridge (12), have utilized the methods and designed the apparatus for the automatic titration of different elements. Miller and Thomason (11) adapted an automatic titrator for similar purposes, while Malmstadt and Gohrbandt (8) described the use of a recording Cary Spectrophotometer for the automatic recording of absorbance measurements as a function of the volume of titrant.…”