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Quantitative determination of the quartz content of respirable dust by infrared spectrophotometry

  • Atomic and Molecular Physics
  • Published:
Acta Physica Hungarica

Abstract

Infrared spectrophotometric method was developed for the determination of crystalline silica in respirable dust samples from a wide range of industrial environments. Samples were collected with personal sampler on a Microsorban filter. The filter was dissolved in benzene and the suspension was separated by centrifuge. The mineral phase content of the dust was determined by X-ray powder diffraction. The particle size of the standards and samples as well as the mineral interference effects were controlled. Different calibration curves using a mixture of crystalline quartz and interference mineral were prepared. The particle size was measured in the pellets. The absorbance of the 800 cm−1 band (Si−O−Si symmetrical stretching vibration) was calculated and proved to be proportional to the concentration of quartz.

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Authors and Affiliations

  1. Institute for Analytical Chemistry, University of Chemical Engineering, P.O. Box 158, 8201, Veszprém, Hungary

    J. Hlavay & L. Antal

  2. Department of Mineralogy, University of Chemical Engineering, P.O. Box 158, 8201, Veszprém, Hungary

    I. Vassányi

  3. State Institute of Occupational Health, Budapest, Hungary

    J. Kárpáti

Authors
  1. J. Hlavay
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  2. L. Antal
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  3. I. Vassányi
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  4. J. Kárpáti
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Hlavay, J., Antal, L., Vassányi, I. et al. Quantitative determination of the quartz content of respirable dust by infrared spectrophotometry. Acta Physica Hungarica 63, 109–113 (1988). https://doi.org/10.1007/BF03155760

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  • DOI: https://doi.org/10.1007/BF03155760

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