钛及钛合金中杂质钇量的测定,有采用PMBP苯萃取偶氮胂Ⅲ比色法、离子交换分离分光光度法等,其结果都是以钇为代表的稀土总量,不能满足单一稀土钇量测定的要求。ICP原子发射光谱可测得单一钇量,但需分离后采用昂贵的ICP 发射光谱仪。本文采用氢氟酸溶样后,用氟化钙沉积钇,使基体钛和其存元素得到分离,钇得到富集,达到火焰原子吸收法(火焰AAS法)测定钇的灵敏度,用氧化二氮- Titanium and titanium alloy impurity yttrium content determination, there are PMBP benzene extraction arsenazo Ⅲ colorimetric method, ion exchange separation spectrophotometry, the results are yttrium represented by the total amount of rare earth, can not meet the single rare earth yttrium Measurement requirements. ICP atomic emission spectrometry can measure a single yttrium content, but need to be separated after the expensive ICP emission spectrometer. In this paper, hydrofluoric acid was used to dissolve samples, the deposition of yttrium with calcium fluoride, the matrix titanium and its elements were separated, the yttrium was enriched to achieve the flame atomic absorption method (flame AAS method) to measure the sensitivity of yttrium with nitrous oxide -