X-ray diffraction analysis of mine airborne dust : an interference problem at Helmo gold mines
Contenido multimedia no disponible por derechos de autor o por acceso restringido. Contacte con la institución para más información.
| Tag | 1 | 2 | Value |
|---|---|---|---|
| LDR | 00000nab a2200000 i 4500 | ||
| 001 | MAP20071019341 | ||
| 003 | MAP | ||
| 005 | 20080418115754.0 | ||
| 007 | hzruuu---uuuu | ||
| 008 | 940525e19890601usa|||| | |00010|eng d | ||
| 035 | $a6800013186 | ||
| 040 | $aMAP$bspa | ||
| 084 | $a872 | ||
| 100 | 1 | $0MAPA20080013608$aKnight, G. | |
| 245 | 1 | 0 | $aX-ray diffraction analysis of mine airborne dust$b: an interference problem at Helmo gold mines$cG. Knight and W. Zawadski |
| 520 | $aA set of airborne dust samples from a Helmo gold mine showed evidence of interference in the routine quartz analysis. A further study of the problem was carried out. First, on a number of field samples, there was no agreement in the quantities of quartz estimated using four diffraction lines. Second, examination of the published diffraction patterns for the common minerals in the ore showed that strong interference could be expected on all four quartz lines. Third, analysis of powder samples prepared from the four types of ore in the mine showed strong interference on one to three of the quartz lines for each type of ore and on all four lines for the four types together. Fourth, spiking of the prepared ore samples with quartz showed poor recoveries | ||
| 650 | 1 | 1 | $0MAPA20080585679$aHigiene industrial |
| 650 | 1 | 1 | $0MAPA20080605278$aContaminantes químicos |
| 650 | 1 | 1 | $0MAPA20080573324$aPolvo de cuarzo |
| 650 | 1 | 1 | $0MAPA20080616441$aContaminación atmosférica |
| 650 | 1 | 1 | $0MAPA20080613655$aControl de contaminantes |
| 650 | 1 | 1 | $0MAPA20080553975$aDifracción |
| 650 | 1 | 1 | $0MAPA20080586331$aMétodos analíticos |
| 650 | 1 | 1 | $0MAPA20080551797$aMuestreos |
| 650 | 1 | 1 | $0MAPA20080563400$aMinas de oro |
| 700 | 1 | $0MAPA20080059729$aZawadski, W. | |
| 740 | 0 | $aAmerican Industrial Hygiene Association journal | |
| 773 | 0 | $tAmerican Industrial Hygiene Association journal$dAkron, Ohio$gVol. 50, nº 6, June 1989 ; p. 293-297 |