Abstract
A COINCIDENCE technique for paper chromatography has recently been described1, in which a ‘shadowgram’ of a chromatogram is produced by placing the chromatogram over a photographic film and exposing the covered film to radiation of a wave-length which is absorbed by the ‘spots’ on the chromatogram. In this way a ‘shadowgram’ of purine or pyrimidine ‘spots’ may be produced by exposing the covered film to an ultra-violet source, or of amino-acid spots (after development with ninhydrin) by exposure to visible light.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to the full article PDF.
USD 39.95
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Ponnamperuma, C., Kirk, P., Mariner, R., and Tyson, B., Nature, 202, 393 (1964).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
BELL, E., WORRALL, C. Method of Recording Simultaneously the Positions of Labelled and Unlabelled Compounds on Autoradiographs. Nature 210, 736 (1966). https://doi.org/10.1038/210736a0
Issue date:
DOI: https://doi.org/10.1038/210736a0
