摘要
研究了Ti(Ⅳ ) 酒石酸盐 (Tar) 苯基荧光酮 (PF) CTMAB四元配合物的显色条件及其应用。该配合物的λmax=5 5 8nm ,钛在 0～ 4 μg/ 2 5ml范围内遵守比耳定律。方法灵敏度高 ,其表观摩尔吸光系数达 1.74× 10 5,且选择性较高。用此法测定合金钢中的钛 。
A highly sensitive reaction is found by the formation of a quaternary complex among Ti(Ⅳ), tartrate, phenylfluorone and CTMAB. The absorption maxima of this complex lies at the wavelength of 558nm. A linear relationship is held over the concentration range of 0～4μg of Ti(Ⅳ) per 25ml of solution. Its molar absorptivity is found to be 1.74×10 5L·mol -1 ·cm -1 . A relatively higher tolerance of tungsten, chromium and bismuth as compared with other conventional methods is observed. The proposed method has been applied to the determination of titanium in alloy steels with satisfactory results.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2001年第12期565-566,568,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
关键词
吸光光度法
钛
苯基荧光酮
四元络合物
Titanium
Phenylfluorone
Quaternary complex
Absorptiophotometry
