摘要
以含磷较低的铁合金作底液,以钼酸铵为显色剂,用磷钼蓝光度法测定铁合金中的磷.磷钼蓝的摩尔吸光系数为7.8×105 L/(mol·cm),与磷钼黄光度法、氟化钠-氯化亚锡还原磷钼蓝光度法相比,测定灵敏度有不同程度的提高.该方法用于实际样品分析,结果准确、可靠.
Phosphorus in Fe-alloy is determined by phosphomolybdic blue spectrophotometry with Fe-alloy containing less phosphorus as base solution and ammonium molybdate as developer. The molar absorption coefficient was 7.8 × 105 . This method has higher sensitivity than phosphomolybdic yellow and sodium fluoride-tin chloride reducing phosphomolybdic blue method. It has an accurate and reliable result in the analysis of actual samples.
出处
《化学分析计量》
CAS
2001年第5期19-20,共2页
Chemical Analysis And Meterage
关键词
铁合金
磷
钼酸铵
光度法
测定
分析
冶炼
原料
Fe-alloy, phosphorous, ammonium molybdate, spectrophotometry
