Accession Number : AD0657334

Title :   TRACE ANALYSIS OF SOLIDS BY MASS SPECTROMETRY.

Descriptive Note : Final scientific rept. 1 Apr 66-30 Jun 67,

Corporate Author : RCA LABS PRINCETON N J

Personal Author(s) : Honig,Richard E.

Report Date : JUL 1967

Pagination or Media Count : 79

Abstract : To improve the mass spectrometric analysis of insulating solids in powder form and of surfaces, a broad-based project was undertaken to evaluate and select suitable metallic powders and wires of highest purity. Thirty-six samples obtained from nine suppliers were analyzed in nearly 180 separate runs in considerable detail. At this time, the cleanest materials of general usefulness are gold and silver in powder and wire form, the sum total of all bulk impurities amounting to less than 10 ppm atomic. Work was continued on ion-sensitive thin-film plates, but so far no method was found that yields plates of sufficient sensitivity without heating the substrate to 180C. Work in other areas, such as laser impact evaporation, revised computer program, and quantitative determination will be described briefly. (Author)

Descriptors :   (*MASS SPECTROSCOPY, METALS), (*POWDER METALS, MASS SPECTROSCOPY), (*ELECTRODES, MASS SPECTROSCOPY), DIELECTRICS, WIRE, SURFACES, BINDERS, MATERIALS, IMPURITIES, MICROANALYSIS, GOLD, SILVER, PHOTOGRAPHIC PLATES, SENSITIVITY, ION SOURCES, EVAPORATION, LASERS, COMPUTER PROGRAMS, QUANTITATIVE ANALYSIS

Subject Categories : Test Facilities, Equipment and Methods
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE