It is taking hychroperoxides as masking agents, alumnium in titanium alloys was meascred with aluminon ammonium aurintri-carboxylate.

研究了以过氧化氢作为掩,试测钛合金中法。

By access to information,determination methods of alumina are mainly including chrome azurol S method and aluminon method.

经查阅资料，测主要法有铬天青S法和试法。