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Proceedings Paper

A Computer Compatible Comparator-Densitometer for Use in High Resolution Mass Spectrometry
Author(s): K. Biemann; P. V. Fennessey; J. M. Hayes
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Paper Abstract

During the past few years the potentiality of high resolution mass spectrometry for the determination of the structure of the organic molecules has been recognized and is presently a fast expanding field. One of the major problems is that of data acquisition since from a molecule of average complexity (i.e. mass 500) a few hundred ions are formed, the mass of which has to be determined with an accuracy of 1:105 to 1:106 to permit assignment of the elemental composition of each ion. Both the quality as well as the quantity of these data (one or two dozen of spectra can easily be recorded per day) requires the use of highly automated data reduction equipment that produces the data in computer compatible form or is operated on-line. A motor driven comparator-densitometer is used to take optical density readings every 0.5 or 1.0 microns and to record them on an incremental magnetic tape. Conversion first into line positions and relative intensities and then into chemically meaningful information is done using an IBM 7094 computer.

Paper Details

Date Published: 1 December 1966
PDF: 8 pages
Proc. SPIE 0006, Filmed Data and Computers, (1 December 1966); doi: 10.1117/12.971050
Show Author Affiliations
K. Biemann, Massachusetts Institute of Technology (United States)
P. V. Fennessey, Massachusetts Institute of Technology (United States)
J. M. Hayes, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0006:
Filmed Data and Computers
Harold L Kasnitz, Editor(s)

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