基于曲拉通X-100和HAc-NaAc(pH=5.9)存在,不除氧条件下,曲拉通X-100能增敏钛(IV)—4,5-二溴苯基荧光酮流体室温磷光信号的增强效应,建立了曲拉通X-100增敏4,5-二溴苯基荧光酮的超高灵敏度流体室温磷光增强法测定痕量钛(IV)的新方法。钛(IV)量为3.2~6.4pg/mL与ΔIp值成线性关系,其工作曲线的回归方程 ΔIp= -31.12 + 147.2CTi4+(pg/mL), r=0.9997,检出限为1.38pg/mL。该方法用于人发和茶叶中钛含量的测定,结果满意。 Based on Triton X-100 and HAc-NaAc (pH = 5.9), Triton X-100 can sensitize titanium (IV) -4,5-dibromophenylfluorone fluid under room temperature Phosphorescence signal to enhance the establishment of Triton X-100 sensitized 4,5-dibromophenylfluorone ultra-high sensitivity fluid room temperature phosphorescence enhanced method for the determination of trace titanium (IV). The linear relationship between the concentration of titanium (IV) and ΔIp was 3.2 ~ 6.4pg / mL. The regression equation of the working curve was ΔIp = -31.12 + 147.2CTi4 + (pg / mL), r = 0.9997 with the detection limit of 1.38pg / mL . The method was applied to the determination of titanium in human hair and tea with satisfactory results.