Accession Number : AD0766759

Title :   An Improved Chemical Ionization Mass Spectroscopy System.

Descriptive Note : Final technical rept. Dec 70-Nov 72,

Corporate Author : BOEING CO SEATTLE WASH

Personal Author(s) : Futrell,Jean H.

Report Date : MAR 1973

Pagination or Media Count : 84

Abstract : The report concerns the development of a sophisticated and versatile medium resolution chemical ionization mass spectrometer. Because of special features of the ion source and optics the sensitivity of this apparatus exceeds by orders of magnitude the capabilities of previous instrumentation. A new ion source and related sample handling modifications based upon the design and testing of this spectrometer has been provided for the DuPont Model 490 mass spectrometer. A versatile interface for computer operation of mass spectrometer systems coupled to a PDP 11/20 computer has also been designed. Hardware and software developed for this purpose are described. Some preliminary results using an interfaced gas chromatograph/chemical ionization mass spectrometer/computer system are presented. (Modified author abstract) Portions of this document are not fully legible.

Descriptors :   (*MASS SPECTROSCOPY, LABORATORY EQUIPMENT), SPECTRUM ANALYZERS, ION SOURCES, IONIZATION, WIRING DIAGRAMS, COMPUTER PROGRAMS, GAS CHROMATOGRAPHY, OPTICAL EQUIPMENT

Subject Categories : Computer Programming and Software
      Computer Hardware
      Test Facilities, Equipment and Methods
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE