Rawat N S, Sinha J K, Sahoo B
Arch Environ Health. 1982 Jan-Feb;37(1):32-5. doi: 10.1080/00039896.1982.10667529.
Quantitative determination of 10 minor and 8 trace elements in respirable coal dust by atomic absorption spectrophotometry is described herein. The coal dust samples were collected in the mine atmosphere during drilling in coal seams. A "Hexhlet" apparatus specially designed and fitted with a horizontal elutriator was used to collect the respirable coal dust fraction. After destruction of organic matter by wet oxidation and filtering off the clay and silica, iron, calcium, magnesium, sodium, potassium, manganese, zinc, copper, cadmium, and nickel were determined directly in the resulting solution by atomic absorption spectrophotometry. The studies relate to the respiratory disease-pneumoconiosis-affecting coal mine workers. X-Ray diffraction studies have shown the presence of kaolin, quartz, pirrsonite and beidellite clay minerals in the coal dust.
本文介绍了用原子吸收分光光度法对可吸入煤尘中10种微量元素和8种痕量元素进行定量测定的方法。煤尘样品是在煤层钻孔时从矿井大气中采集的。使用专门设计并配备水平淘析器的“Hexhlet”装置收集可吸入煤尘部分。通过湿式氧化破坏有机物并滤去粘土和二氧化硅后，用原子吸收分光光度法直接测定所得溶液中的铁、钙、镁、钠、钾、锰、锌、铜、镉和镍。这些研究涉及影响煤矿工人的呼吸道疾病——尘肺病。X射线衍射研究表明煤尘中存在高岭土、石英、泡碱和贝得石粘土矿物。
