Abstract
Publisher Summary Nucleic acid components on paper chromatograms are photographed by making a contact print by filtered ultraviolet light onto sensitized paper through the dried paper chromatograms. In the procedure, the source of ultraviolet light is a Hanovia Homesun lamp, a 450-watt, 200-volt, mercury arc lamp. This is used in conjunction with a specially constructed filter. Various sensitized papers used for making contact copies of printed pages are suitable for the present purpose, for example, Kodagraph Contact Standard. Time of exposure and distance of paper from the light source are determined with known standards. For making the prints, it is quite satisfactory to pin the chromatogram paper over the photographic paper on a planoconvex wooden surface. A piece of plywood is fastened to a board with a small strip of wood under the center to bow the plywood out a little. After development, the paper is fixed and washed in the usual way.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
