This selection of photographs depicts Arnold and Mabel Beckman at their home and attending various events. Some are dated, and all appear to fall into the period between the 1940s and 1985, when the couple was presented…

Beckman Instruments entered the gas chromatograph business in 1956 with the acquisition of the successful Watts Manufacturing Company. Later that year, Beckman Instruments produced its first gas chromatograph, the GC-1,…

The nurse and infants in this photograph are unidentified.

Instruction manual for an instrument designed to record levels of oxidants in the atmosphere. Measuring oxidants is one way to quantify air pollution. Photochemical oxidants are air pollutants which form when air…

Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting “acidimeter” with its…

The watermark on the paper indicates that these directions may have been written by the Columbus Water and Chemical Testing Laboratory.

The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the…

Beckman Instruments, Inc. became interested in measuring, controlling, and fighting air pollution in the late 1940s and early 1950s, when company president Arnold O. Beckman became the scientific adviser to the Los…

The MicroCoder IIA was marketed for use with Minimum Inhibitory Concentration (MIC) panels for pneumonia, influenza, and meningitis.

This vertical pump was used to control reagent supply and volume with the ASTRA analyzer system line, a multi-channel clinical chemistry analyzer produced in the late 1970s.

Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and thus began a long career manufacturing scientific and medical instruments with National Technical Laboratories,…

Dr. Arnold O. Beckman (1900-2004), pictured here with a DU Spectrophotometer, invented the first commercially successful electric pH meter in 1934. Thus began a long career manufacturing scientific and medical…

Dr. Arnold O. Beckman (1900-2004) is pictured here with his pH meter, which he invented in 1934 and which became the first commercially successful electric pH meter. Thus began a long career manufacturing scientific and…

Joseph R. Coulter, Jr. (1924-1995) co-founded Coulter Corporation with his brother, Wallace, in the 1950s. The company was acquired by Beckman Instruments in 1997.

Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and thus began a long career manufacturing scientific and medical instruments with National Technical Laboratories,…

Joseph R. Coulter, Jr. (1924-1995) co-founded Coulter Corporation with his brother, Wallace, in the 1950s. The company was acquired by Beckman Instruments in 1997.

High-performance liquid chromatography analyzes the components of a sample by pumping a solution through a column containing an adsorbent material, which separates and interacts distinctly with the components. The flow…

A traveling exhibit of Beckman Instruments' biomedical instruments products.

Lineberger is the man on the right. The instrument they are examining is unidentified.

Table of spectrophotometer and pH readings of various substances, including strychnine, caffeine, amphetamine, benadryl, and ascorbic acid. As this document is undated and vaguely titled, it is unclear which instrument…