本文研究了在阳离子表面活性剂溴化十六烷基三甲铵 ( CTMAB)存在下 ,锆 ( )与 2 ,3 ,7-三羟基 -9-( 3 ,4 -亚甲二氧苯甲基 ) -6-荧光酮 (简称胡椒基荧光酮 ,9-PF)的显色反应 .在 0 .1 0～ 0 .1 5mol· L- 1的盐酸介质中 ,Zr( )与 9-PF形成 1へ 4的桔红色配合物 ,其λmax=52 9nm,表观摩尔吸光系数ε=1 .3 1× 1 0 5 L· mol- 1 ·cm- 1 ,Zr( )在 0～ 9μg/1 0 ml范围内符合比尔定律 ,采用石油醚萃取分离铁 ,能显著提高分析方法的选择性 .采用拟定方法测定了钢铁样品中的微量 Zr( ) ,结果满意 . In this paper, the effects of zirconium (Ⅱ) and 2,3,7-trihydroxy-9- (3,4-methylenedioxybenzyl) The color reaction of 6-fluorone with 9-PF (piperonylfluorescein) was studied in the presence of Zr () and 9-PF in 0.1 mol·L -1 hydrochloric acid 4 of the orange complexes, the λmax = 529nm, the apparent molar absorptivity ε = 1.31 × 105L · mol-1 · cm-1, Zr () in the range of 0 ~ 9μg / 1 0 ml Beer ’s law is obeyed, Beer’ s extraction of iron by petroleum ether can significantly improve the selectivity of the analytical method, and the determination of trace Zr () in the steel samples by the proposed method is satisfactory.