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研究了四种２，３，７－三羟基荧光酮－９－取代物（水杨基、邻硝基苯基、邻氯苯基和二溴羟基苯基）在新两性表面活性剂Ｎ－［Ｎ′－（羟甲基）－Ｎ′－（２－羟乙基）氨乙基］月桂酰胺钠盐（ＣＭＨＥＡＥＬＡ）和十二醇聚氧乙烯２３醚（Ｂｒｉｊ─３５）存在下与钛的显色反应．结果发现，钛与水杨基荧光酮（ＳＡＦ）在０．０２５～０．０８ｍｏｌ／Ｌ盐酸介质中形成１：３络合物，λ＿（ｍａｘ），为５３２ｎｍ，表现摩尔吸光系数ε＿（５３２）＝２．０２×１０￣５Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），拟定了用分光光度法直接测定合金钢和铝合金中微量钛的分析方法，结果满意．
The effects of the four 2,3,7-trihydroxyfluorone-9-substitutes (salicyl, o-nitrophenyl, o-chlorophenyl and dibromohydroxyphenyl) on the activity of the novel amphoteric surfactants N- [ In the presence of N ’- (hydroxymethyl) -N’ - (2-hydroxyethyl) aminoethyl] lauramide sodium salt (CMHEAELA) and dodecanol polyoxyethylene 23 ether (Brij- 35) Color reaction The results showed that titanium and salicylfluorone (SAF) formed a 1: 3 complex in 0.025-0.08 mol / L hydrochloric acid medium, λ max (max) was 532 nm, which showed the molar absorptivity ε 532, = 2.02 × 10 ~ 5L · mol ~ (-1) · cm ~ (-1). The analytical method of direct determination of trace titanium in alloy steel and aluminum alloy by spectrophotometry was proposed. The results were satisfactory.