Recording Integrating Photoelectric and Radioactive Scanner for Paper Electrophoresis and Chromatography

A versatile automatic scanner for paper strips which records directly optical density or radioactivity is built around a servo type recorder (Brown). Interference filters provide a narrow band light source. For scanning in the visible or ultraviolet where monochromatic light is desired the monochrom...

Full description

Saved in:
Bibliographic Details
Published in:Review of scientific instruments 1955-01, Vol.26 (1), p.51-56
Main Authors: Durrum, E. L., Gilford, S. R.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A versatile automatic scanner for paper strips which records directly optical density or radioactivity is built around a servo type recorder (Brown). Interference filters provide a narrow band light source. For scanning in the visible or ultraviolet where monochromatic light is desired the monochromator of a Beckman model DU spectrophotometer replaces the filters. The instrument incorporates positive synchronization of strip and recording paper, sequential scanning of strips to provide an optical density curve followed by superposition of the integral of this curve. Areas are easily calculated without the need for planimetry. The slits of varying size are interchangeable and are designed for either optical or radioactive scanning. For medium levels of activity a Geiger‐Müller tube is interchangeable with the photocell, while for low activities, optical scanning of autoradiographs may be performed.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1771240