摘要
在聚乙二醇辛基苯基醚存在下,研究了钛与水杨基荧光酮的反应特性。结果发现pH在1 20～2 00范围内,形成灵敏度较高的紫红色配合物,其λmax=535nm,ε=1 32×105L·mol-1·cm-1,钛含量在0～0 36μg/mL的测量范围内服从比尔定律。在盐酸羟胺和草酸钠的联合掩蔽下,用此法测定钢中微量钛,获得了满意的结果。
Under the existance of polyglycol caprlphany ether,the reactive characteristics of salicyl group fluorone and Ti (Ⅳ) were studied. The experiment shows that salicyl group fluorone and Ti (Ⅳ) forms a highly sensitive reddish complex at pH=1.20～2.00,its maximum absorption is at 535 nm,and its molar absorption coefficient is 1.32×10~5 L.mol^(-1).cm^(-1). It is in with the Beer's law when the concentration of Ti(Ⅳ) ranges from 0 to 0.36 μg/mL. Under the shelbering of hydroxylaminehy drochloride and sodium oxalate, the result of determination of trace Ti(Ⅳ) in bearing-steel sample was satisfactory by using this method.
出处
《青海大学学报（自然科学版）》
2004年第4期53-56,共4页
Journal of Qinghai University(Natural Science)
关键词
水杨基荧光酮
微量钛
聚乙二醇辛基苯基醚
salicyl group fluorone
trace titanium
polyglycol caprylpheny ether
