导数分光光度法测定铝及铝合金中微量锰的研究  

Study on the Derivative Spectrophotometric Determination of Micro Manganese in Aluminium and Its Alloy

作　　者：王淑华[1] 路培乾[1] 郭永恒[1] 

机构地区：[1]国家轻金属质量监督检验中心,郑州450041

出　　处：《冶金分析》2000年第5期12-14,共3页Metallurgical Analysis

摘　　要：研究了利用 5 Br PADAP作显色剂 ,乳化剂OP作增溶增敏剂 ,导数分光光度法测定铝及铝合金中微量锰的适宜条件。经对纯铝及铝合金国家标准样品进行分析 ,相对标准偏差RSD≤ 1 2 % (0 0 0 0 4 %Mn) ,标准加入回收率在 97%～ 1 0 3%之间。In this paper using 5 Br PADAP as a color reagent and OP as an enhancing reagent, the optimal condition for the determination of micro manganese in aluminium and its alloy was studied by derivative spectrophotometry. The method has been applied well for the determination of micro manganese of aluminium and its alloy. The RSD is≤12%(for 0.0004%Mn), The recoveries are 97%-103%.

关 键 词：铝 铝合金 锰 测定 导数分光光度法 

分 类 号：O657.3[理学—分析化学]