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出 处:《莱钢科技》2016年第2期59-60,共2页Laigang Science & Technology
摘 要:铝锰铁经HNO3-HCIO4氧化。在酸性溶液中PO4^2-与钒钼酸铵作用,生成黄色络合物。利用分光光度计在波长440 nm处测定样品的吸收度,其吸光度与样品中磷含量成正比。分析结果与认定值一致,满足了铝锰铁中磷元素快速分析的要求。The ferro-manganese-aluminum was oxidized with HNO_3- HCIO_4,then PO_4^(2-)acted with vanadium ammonium molybdate in the acidic solution and formed a yellow complex. Now the absorbance of sample was determined by spectrophotometer at the wavelength of 440 nm,and its absorbance was proportional to the content of phosphorus. The analysis result was consistent with the identified value,meeting the requirements for the rapid analysis of element phosphorus in ferro-manganese- aluminium.
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