铝及铝合金中锡的极谱测定  

POLAROGRAM DETERMINATION OF Sn IN Al OR Al ALLOY

作　　者：路霞[1] 张晓春[1] 

机构地区：[1]郑州轻金属研究院

出　　处：《河南冶金》2001年第3期21-22,共2页Henan Metallurgy

摘　　要：本法采用氢氧化钠、过氧化氢溶解试样,调节酸度后,以EDTA络合主体铝,以铍盐作为聚集剂,用氨水沉淀锡与干扰元素分离,沉淀直接用盐酸-氯化铵底液溶解,极谱法测定,操作简便快速,适用于各种铝合金中0.001％以上锡的测定。结果良好,增量回收率为96～102％。The sample was dissolved by naoh,perhydol,after acidity adjustment,complexing main Al with EDTA, berrylon as aggregation agent, subside Sn by use of ammonia water and interfer element seperation, sediment was dissolved directly with hydrochloric acid - selmiac original liquid, the polarogram determination has a sample operation and applicated in determination of over 0.001% Sn in every Al alloy.The method has a good result and its increment recovery ratio is 96 ～ 102% .

关 键 词：铝合金 锡 极谱法 测定 铝 

分 类 号：TG115[金属学及工艺—物理冶金]