The determination condition of gallium by extraction-photometric method with ethyl rhodamine B is studied systematically in comparision with rhodamine B and butyl rhodamine B.

• 系统研究了乙基罗丹明B萃取光度法测镓的条件，并与罗丹明B和丁基罗丹明B法进行了比较，拟定了钒钛磁铁矿及其冶炼渣中痕量镓的分析新方法。