摘要
试样经碳酸钠、硼酸和四硼酸钠混合助溶剂碱熔,硝酸酸化定容后,以铋磷钼黄分光光度法测定五氧化二磷;在草酸存在下,以硫酸亚铁铵为还原剂,硅钼蓝法测定二氧化硅,本方法操作简单、快速,具有较好的精密度和准确度。
Sample by sodium carbonate, boric acid and sodium tetraborate cosolvent alkali fusion, the capacity, the nitric acid acidification in bismuth phosphor molybdenum yellow spectrophotometric method determination of phosphorus pentoxide; In the presence of oxalate, reductant of ammonium ferrous sulfate, silica, silicon molybdenum blue method, this method operation is simple, rapid, and has good precision and accuracy.
出处
《化工管理》
2013年第10期63-63,65,156,共3页
Chemical Engineering Management
关键词
分光光度法
铁矿石
五氧化二磷
二氧化硅
spectrophotometric, method
Iron ore
Phosphorus pentoxide
Silicon dioxide o
