A Comparative study of particle size dependency of IR and XRD methods for quartz analysis

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      <subfield code="a">A Comparative study of particle size dependency of IR and XRD methods for quartz analysis</subfield>
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      <subfield code="a">Quartz (SiO2) is considered a probable carcinogen. In order to enforce health and safety standards, techniques that can accurately determine the quartz content of materials are necessary. Currently, two techniques dominate quartz analysis - the infrared (IR) spectrophotometry method and the X-ray diffraction (XRD) method. Unfortunately, there are problems associated with these techniques, such as sample preparation and particle size effect. This study focuses on particle size effect on quartz determination by both IR and XRD. Seven size groups of pure quartz samples, with mean diameters from 1,5 to 20 microns, were used</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="g">Vol. 55, nº 7, July 1994 ; p. 605-609</subfield>
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