title: A simple sensitive recording differential refractometer for column chromatography.
abstract: Light passes through a hollow prism containing the sample liquid and is then focussed on a position-sensitive photodiode. Movement of the image due to a change in the refractive index of the sample produces an electrical signal which is recorded directly on a potentiometer recorder.
authors.affiliation: Chemistry Department, P.O. Box 363 University of Birmingham, Edgbaston, Birmingham 15 England,U.K.
authors.forename: J R
authors.initials: JR
authors.lastname: Majer
authors.forename: S
authors.initials: S
authors.lastname: Travers
authors.forename: M
authors.initials: M
authors.lastname: Watson