This email describes an attempt to develop a glucose electrode in the 1960s. This project was abandoned when Beckman Instruments focused instead on the Glucose Analyzer.
The photostat document lists the first hundred companies and institutions to use Beckman's quartz spectrophotometers; the original document was undated.
The first Beckman Instruments DU Spectrophotometer was developed…
The handwritten account, possibly written by James C. Sternberg, is missing early pages.
The Glucose Analyzer was developed by James Sternberg in 1969 and was one of several very successful medical testing and analysis…
This memorandum represents an early discussion of the development of the glucose analyzer, including the potential of an implanted capsule to maintain insulin levels and the Helipot microcircuitry expertise that could…
Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists, concerning the development of several scientific, analytical instruments, as well as a proposal to establish a program in Chemical Physics.
- Evaluation Study of Twenty-five Zeromatic pH Meters
The memo discusses a study of Zeromatic pH meters and includes a handwritten table of data.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed…
In one of a series of memos regarding the Zeromatic pH meter, Ed Molloy outlines differences between the 9600 and H-2 models and proposes solutions for grounding the instrument.
Arnold Beckman invented his first pH…
- Case Color for 9600 PH Meter
In this memo, Walter Donner discussed the color and material to be used for the Zeromatic's case.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who…
Raymond Schiff describes the dangers of Zeromatic users receiving electric shocks.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an…
Hulek, Arnold Beckman's secretary, responds to a letter from Manning requesting the overhaul of a spectrophotometer. She explains that Beckman himself is in Nevada observing an atomic bomb test.
- First IR-1 and IR-2 Instruments
This memo discusses the history of the Beckman IR-1 and IR-2 spectrophotometers, including the serial numbers, prices, and customers for the first models produced.
The Beckman Instruments IR spectrophotometers began…
- or, "Don't Fall For That Speed Stuff"
The DR was a double-beam ultraviolet spectrophotometer, designed for accuracy rather than speed. Lee Cahn's skit represents an effort to begin "selling accuracy," as noted in the attached memo from J. D. MacNamara. The…
Allen Hussey, the director of Northwestern University's chemical laboratories, discusses the frequent breakdowns of the IR-2T spectrophotometer, the practical and ethical barriers to selling it to recoup expenses, and…
The memorandum discusses a rival company's spectrophotometer, the Warren Spectracord. (Warren Electronics, Inc. would be acquired by Perkin-Elmer in 1956). The Beckman Instruments DR Spectrophotometer is framed as…
In response to Donald Loughridge's complaints about the performance of the IR-2T spectrophotometer, Arnold Beckman defers to general sales manager W. H. Steinkamp and expresses confidence that he will bring the…
Donald Loughridge, dean of Northwestern University, exchanges friendly news with Arnold Beckman before discussing chemistry professor Robert L. Burwell's complaints about the IR-2T spectrophotometer, its frequent…
This letter to an unidentified person at Beckman Instruments, Inc. describes an omission in the Model G pH meter documentation, which does not include replacing the batteries as a possible fix for a specific problem.
This letter suggests Beckman might be interested in commercial development of de Forest's new invention, a "sandwich, non-vacuous, light amplifier."
This letter from S. Feier of Buffalo Apparatus Corporation provides an outsider perspective on competition for Beckman Instruments' DR Spectrophotometer market, with specific mention of the Fisher Spectrocord.
The letter provides an outsider perspective on Beckman Instruments' competition for the DR spectrophotometer's market.
The letter concerns importation of spectrophotometers into Germany and France, the Economic Cooperation Administration (ECA), and post-war atomic energy restrictions.
A chemist with Standard Oil Company's Research Department, Steininger explored the possible creation of an instrument to analyze and record hydrogen sulfide concentrations in oil refineries, a safety measure otherwise…
In this letter, J. H. Rushton of the National Defense Research Committee requests an update on the status of F and G model oxygen meter instruments.
Developed from a Linus Pauling design during WWII, the technology…
In this handwritten letter, Prentiss discusses reports on the oxygen meter contracts and the possibility of working for Phillips Petroleum, despite his lack of enthusiasm for relocating to Oklahoma.
Developed from a…
The letter sketches the specifications for a partial pressure indicator for use in aircraft, and notes that a prototype has already been constructed. The recipient may be a member of the Navy's Research and Development…