钼(Ⅵ)-5-溴水杨基荧光酮极谱络合吸附波的研究  

Polarographic Absorptive Complex Wave of Molybdenum(Ⅵ)-5-Bromo-Salicylfluorone

作　　者：拓宏桂[1] 马红燕[1] 石景强[2] 郭小云 严彦彬 

机构地区：[1]延安大学化学与化工系,陕西延安716000 [2]铜川教育学院,陕西铜川727000

出　　处：《延安大学学报（自然科学版）》2000年第2期65-67,共3页Journal of Yan'an University：Natural Science Edition

摘　　要：在 p H4.5的醋酸盐缓冲底液中 ,用单扫示波极谱法可获得灵敏的 Mo( ) -5 -溴水杨基荧光酮络合吸附波 ,钼浓度在 1 .0× 1 0 - 8～ 1 .0× 1 0 - 6mol/ L范围内与二阶导数波峰高成正比关系 ,检测限为 7.0× 1 0 - 9mol/ L,测得电活性络合物组成为Mo( )∶ 5 - Br SAF=1∶ 2 ,条件稳定常数为β=5 .4× 1 0 1 0 .In the buffer solution of acetate, at pH 4 5, a sensitive absorptive complex wave of Mo(Ⅵ) 5 Bromo Salicylfluorone can be obtained by single sweep polarography.The change of peak height with the concentration of Mo(Ⅵ) is cinear in the range from 1 0×10 -8 mol/L to 1 0×10 -6 mol/L、the detection limit is down to 7 0×10 -9 mol/L. The complex composition is detected as Mo(Ⅵ)∶5 BrSAF=1∶2.

关 键 词：钼 5-溴水杨基荧光酮 络合吸附波 单扫极谱法 

分 类 号：O614.612[理学—无机化学] O657.14[理学—化学]