钛-芦丁-溴化十六烷基三甲铵分光光度法测定钛的研究

Determination of Titanium with Titanium-Lutin-CTMAB System by Spectrophotometry

溴化十六烷基三甲铵与芦丁在 pH 4 .4～ 5.5酸度溶液中 ,可与钛形成配合物。试剂及钛配合物均稳定 ,最大吸收波长为 4 30nm ,配合物的摩尔吸光系数为 4 .4 3× 10 4 L·mol- 1·cm- 1,符合比尔定律的线性范围为 0 .0 4 8～ 1.4 4 μg·ml- 1。此方法用于各种人工合成及高岭土中微量钛的测定 ,结果令人满意。

This paper studies the method for determination of titanium(Ⅲ) with titanjum-Lutin-CTMAB System by spectrophotometry.ln the PH range of 4.4-5.5,Lutinand CTMAB react with maximum absorption of the complex is at 430nm and its apparewt molar absorption is 4.43 L·mol -1 ·cm -1 beer's law is laid down in the range of 0.148-1.44μg·ml -1 .The method has been applied to determinae titanium(Ⅲ) in GaoLing soil samples with satisfactory results. [