[Logarithmic attachment to a monochromator for recording small changes in absorption].
The paper describes a device consisting of a spectrophotometer (SP-4, SP-4A, SP-16), logarithmic amplifier, recording instrument and a flow-type cuvette that allows quantitative registration of biological substances during their separation on chromatographic columns.
D013053:Spectrophotometry / Q000295:instrumentation*
Logarifmicheskaia pristavka k monokhromatoru dlia registratsii malykh izmeneniĭ pogloshcheniia.