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

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003  MAP
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008  950928e19940701usa|||| | |00010|eng d
040  ‎$a‎MAP‎$b‎spa
084  ‎$a‎872
1001 ‎$0‎MAPA20080123642‎$a‎Bhaskar, Ragula
24512‎$a‎A Comparative study of particle size dependency of IR and XRD methods for quartz analysis‎$c‎Ragula Bhaskar, Jianliang Li, Lijun Xu
520  ‎$a‎Quartz (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
65011‎$0‎MAPA20080585679‎$a‎Higiene industrial
65011‎$0‎MAPA20080605278‎$a‎Contaminantes químicos
65011‎$0‎MAPA20080540760‎$a‎Cuarzo
65011‎$0‎MAPA20080591960‎$a‎Métodos de análisis
65011‎$0‎MAPA20080568825‎$a‎Espectrometría
65011‎$0‎MAPA20080582203‎$a‎Rayos infrarrojos
65011‎$0‎MAPA20080545192‎$a‎Rayos X
7001 ‎$0‎MAPA20080075804‎$a‎Li, Jianliang
7001 ‎$0‎MAPA20080007881‎$a‎Xu, Lijun
7400 ‎$a‎American Industrial Hygiene Association journal
7730 ‎$t‎American Industrial Hygiene Association journal‎$d‎Akron, Ohio‎$g‎Vol. 55, nº 7, July 1994 ; p. 605-609