Silica Analysis of Industrial Hygiene Samples by X-Ray Diffraction: Interim Report

  • D. T. Donovan
  • J. W. Knauber
  • F. H. VonderHeiden
Part of the Progress in Analytical Chemistry book series (PAC, volume 176)


Following development of an x-ray diffraction packed powder internal standard procedure 1, 2 for analyzing settled dust samples for free silica, a method was designed for respirable air-borne quartz. Silver membrane filters, because of their greater resistance to humidity, were being used for gravimetric determinations of inert or nuisance dusts. Further, it was determined that the x-ray diffraction pattern of the silver membrane was flat and even and that silver had no interfering peaks and should be adaptable to direct quartz analysis. Talvitie, Brewer, Knott and Oberg had shown the possibility of a more direct technic for the x-ray diffraction analysis of air-borne dusts. 3, 4, 5


Calcium Fluoride Cyclone Separator Free Silica Pennsylvania Department Silver Peak 


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  1. 1.
    Klug, H. P. and Alexander, L.: X-Ray Diffraction Procedures. p. 390. John Wiley and Sons, New York N.Y., (1954).Google Scholar
  2. 2.
    Cullity, B. D.: Elements of X-Ray Diffraction, p. 269 and p. 378.Addison-Wesley, Reading, Massachusetts (1959).Google Scholar
  3. 3.
    Talvitie, N. A. and Brewer, L. W.: Separation and Analysis of Dust in Lung Tissue. Amer. Ind. Hyg. Assoc. J., 23: 58 (1962).CrossRefGoogle Scholar
  4. 4.
    Crable, J. V. and Knott, M. J.: Quantitative X-Ray Diffraction Analysis of Crocidolite and Amosite in Bulk or Settled Dust Samples. Amer. Ind. Hyg. Assoc. J., 27: 449 (1966).CrossRefGoogle Scholar
  5. 5.
    Oberg M.: Evaluation of Quartz in Airborne Dust in the 0.5–2.0 Micron Size Range. Environ. Sci. Tech., 2: 10 (1968).CrossRefGoogle Scholar
  6. 6.
    Perloff, A., Crystallography Section, National Bureau of Standards, U.S. Department of Commerce, Washington, D.C. - personal communication.Google Scholar
  7. 7.
    Talvitie, N.A.: Determination of Quartz in Presence of Silicates Using Phosphoric Acid. Anal. Chem., 23: 623 (1951).CrossRefGoogle Scholar
  8. 8.
    Scoville, R.G.: Personal Air Sampling, Michigan’s Occupational Health, 15: 2 (1970).Google Scholar
  9. 9.
    VonderHeiden, F. H. and Knauber, J. W.: A Technic for the Direct X-Ray Diffraction Analysis for Quartz in Airborne Dust Collected on Silver Membranes. Bureau of Occupational Health, Pennsylvania Department of Environmental Resources, Harrisburg, Pa., unpublished.Google Scholar
  10. 10.
    Bureau of Occupational Health Committee on Analytical Methods: Standard Procedure for Collection and Analysis of Inert or Nuisance Particulate. Bureau of Occupational Health, Pennsylvania Department of Environmental Resources, Harrisburg, Pa., unpublished.Google Scholar
  11. 11.
    Saltzman, B. E.: Microdetermination of Chromium with Diphenylcarbazide by Permanganate Oxidation. Anal. Chem. 24: 1016 (1952).CrossRefGoogle Scholar
  12. 12.
    Talvitie, N. A.: Determination of Free Silica: Gravimetric and Spectrophotometric Procedure Applicable to Airborne and Settled Dust. Amer. Ind. Hyg. Assoc. J., 25: 169 (1964).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1973

Authors and Affiliations

  • D. T. Donovan
    • 1
  • J. W. Knauber
    • 1
  • F. H. VonderHeiden
    • 1
  1. 1.Pennsylvania Department of Environmental ResourcesBureau of Occupational HealthHarrisburgUSA

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