Many methods for photometric analysis of aluminium were described.
介绍了光度法分析铝的一些方法；
METHODS By combinaton of complexing dissolution, solvent extraction and photometric measurement, the amount of salicylic acid was first obtained and then converted to the content of copper salicylate.
方法 通过络合溶解、溶剂萃取、光度法测量的联用，测定水杨酸的量，再换算成水杨酸铜的含量。
Recently various new reagents and detection methods were used to the photometric detection of niobium.
近年来各种新试剂、新方法的不断涌现，使铌的光度分析有了新的进展。
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