Accession Number : ADA019521

Title :   Mass Spectrometric Studies.

Descriptive Note : Final rept.,


Personal Author(s) : Jones,E. G.

Report Date : JUL 1975

Pagination or Media Count : 223

Abstract : Mass-spectrometric investigations of diverse areas ranging from the basic understanding of elementary physical-chemical processes to analyses of trace elements in the environment are outlined. Basic thermodynamics and chemical kinetics of ion-neutral phenomena relevant to the solution of problems of immediate importance to the U.S. Air Force are emphasized. Particular emphasis is placed on electron-affinity determinations of small gaseous species of importance as electron scavengers in the atmosphere, and electronic excitation in ion-neutral collision processes of direct application to the understanding and prediction of new laser systems. Sophisticated analytical techniques to quantify trace contaminants such as dioxin in Herbicide Orange and other impurities in solid, liquid, and gaseous environmental samples are outlined. These include sample work-up, column preparation, and gas-chromatographic mass-spectrometric analysis. Techniques for quantitative adsorption and desorption of noxious gases on selectively prepared columns are described. Methods of computer interfacing with mass spectrometers for data acquisition are outlined. These include techniques for treating data from both chemical-physical and analytical investigations.

Descriptors :   *Mass spectroscopy, *Chemical analysis, Chemical bonds, Thermochemistry, Excitation, Atomic energy levels, Molecular energy levels, Laboratory equipment, Dissociation, Ions, Cross sections, Reaction kinetics, Doppler effect, Wave functions, Herbicides, Milk, Soils, Oxygen heterocyclic compounds, Chlorinated hydrocarbons, Extraction, Chromatographic analysis, Gas analysis, Tanks(Combat vehicles), Hydraulic fluids, Monitoring, Nitrogen oxides, Adsorption, Desorption, Sampling, Gas ionization, Molecular beams, Gas chromatography, Potential energy, Relativity theory

Subject Categories : Civil Engineering
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE