【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。更多还原

【Abstract】 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 1.32×10⁵ 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.更多还原