【摘要】 从磷肥厂采集过磷酸钙和磷矿石样品,并分析了样品中铀、镭-226、钍的含量,测定过磷酸钙样品表明,铀的含量相当于8.30ppm;镭-226的含量相当于111.37Bq/kg;钍的含量相当于2.81ppm。测定磷矿石样品表明,铀的含量相当于35.66ppm;镭-226的含量相当于468.95Bq/kg;钍的含量相当于3.35ppm。更多还原

【Abstract】 Samples of superphosphate and phosphoric ores from phosphate fertilizer factories in Liaoning Province were analyzed for uranium, radium-226 and thorium contents. The analytical results showed that superphosphate contained uranium up to 8.30 ppm, radium-226 up to 111.37 Bq/kg and thorium up to 2.81 ppm, and phosphoric ores contained uranium up to 35.66 ppm, radium-226 up to 468.95 Bq/kg and thorium up to 3.35 ppm, respectively.更多还原