摘要
在六次甲基四胺缓冲溶液 ( pH5～ 6)介质中 ,铝与铬天青S生成水溶性的紫红色络合物 ,其λmax=5 45nm。本法较铝试剂法具有较高的灵敏度 ,并重复性好 ,适用于铅钙铝三元合金中 0 0 1%～ 5 %铝的测定。
In the medium of hexamethylenetetramine buffer solution(pH 5 6) aluminium reacts with chrome azurol S to produce a water dissoluble purple complex.The absorption maximeum is at 545nm. This method has higher senitivity and better repeatability than that aluminon method. The proposed method is suitable for the determination of aluminium in the range of 0.01%-5% in Lead Calcium aluminium ternary alloy.
出处
《冶金分析》
CAS
CSCD
北大核心
2001年第2期22-23,共2页
Metallurgical Analysis
