用苯芴酮测定钛的方法,资料中已有过报导,但这些方法的灵敏度均偏低。本文在此基础上研究了在盐酸介质中,以非离子型表面活性剂烷基酚聚乙二醇醚(以下简称OP-10)-苯芴酮分光光度测定微量钛的适宜条件,提出了一个手续简便、选择性好、灵敏度高的新方法。络合物的摩尔吸光系数ε=1.78×10~5、桑德尔灵敏度S=0.00027微克/厘米~2,λ最大为532纳米;钛含量在0—3微克/25毫升符合比耳定律。 Methods for the determination of titanium with benzofluorenone have been reported in the literature, but the sensitivity of these methods is low. Based on this, the suitable conditions of spectrophotometric determination of trace titanium in non-ionic surfactant alkylphenol polyglycol ether (OP-10) -benzene fluorenone were studied in hydrochloric acid medium, Procedures are simple, good selectivity, high sensitivity of the new method. The molar absorptivity ε of the complex was 1.78 × 10 ~ 5, the sensitivity of Sander was 0.00027 μg / cm ~ 2 and the maximum was 532 nm. Beer ’s law was obeyed when the content of titanium was 0-3 μg / 25 ml.