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基于钛(Ⅳ)对CTMAB-4,5-二溴苯基萤光酮(DBPF)体系的萤光的熄灭效应建立了测定微量钛(Ⅳ)的萤光分析新方法。于552nm处进行测量,工作曲线的线性范围为0—2.0μg/25mL。对8份含有1.0μg Ti(Ⅳ)的标准溶液进行平行测定,相对标准偏差为0.60％。本法已用于不锈钢和铝金中钛的测定。
Based on the quenching effect of titanium (Ⅳ) on the fluorescence of CTMAB-4,5- dibromophenylfluorone (DBPF) system, a new fluorescence analysis method for the determination of trace titanium (Ⅳ) was established. Measured at 552 nm, the working curve has a linear range of 0-2.0 μg / 25 mL. Eight standard solutions containing 1.0 μg of Ti (Ⅳ) were tested in parallel with a relative standard deviation of 0.60%. This method has been used for the determination of titanium in stainless steel and aluminum.