Some Factors Affecting Automatic pH Control

Fiftieth Anniversary: Growth of the Luminescence Section

“…It has in reality become a standard tool in most laboratories. Other instruments such as automatic temperature controls described by Fogle (14) or pH controls described by Greer and Chalpin (15) which were nonexistent at the turn of the century have become commonplace in industry today. Various types of photocells as described by Fink, et al (16,17) and later by Rentschler and Henry (18) have become useful tools.…”