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Start Over Subject Hydrogen-ion concentration--Measurement--Instruments

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Beckman Spectromonitor
- Undated
This liquid chromatography recording detector system consists of a dual-beam spectrophotometer, a pH meter, and a conductivity cell.
- Subject Liquid chromatography, Spectrum analysis, Hydrogen-ion concentration--Measurement--Instruments, Spectrophotometer, Beckman Instruments, Inc.
Photographs

Spinco Model 135A Spectromonitor
- Undated
This liquid chromatography recording detector system consists of a dual-beam spectrophotometer, a pH meter, and a conductivity cell.
- Subject Liquid chromatography, Spectrum analysis, Hydrogen-ion concentration--Measurement--Instruments, Spectrophotometer, Beckman Instruments, Inc., Beckman Instruments, Inc. Spinco Division
Photographs

Spinco Model 130 Spectrochrom Analyzer
- Undated
This chromatography instrument was first manufactured in the mid-1960s. It allowed operators to run several analyses at once and print out results, instead of compiling them separately. Components included pH and…
- Subject Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Spectrophotometer, Chromatographic analysis, Biochemistry--Instruments, Electric conductivity--Measurement, Beckman Instruments, Inc., Beckman Instruments, Inc. Spinco Division