硼钼蓝—罗丹明B—聚乙烯醇分光光度法测定微量硼  

Determination of Trace B by Spectrophotometry with Molybdoboric Heteropoly acid,PVA and RhodamineB

作　　者：芦廷峰[1] 

机构地区：[1]吉林农业大学发展学院,吉林省长春市130600

出　　处：《职大学报》2012年第6期84-85,共2页Journal of the Staff and Worker’s University

摘　　要：本文研究了在聚乙烯醇存在下,罗丹明B与硼钼蓝的离子缔合显色反应,其最大吸收波长573nm,摩尔吸收系数为1.0×105Lmol-1cm-1,硼量在0-1.6μg/25mL。此方法用于测定废水中的硼,结果令人满意。A new colour reaction of ion associate complex of Molybdoboric heteropoly acid—rho—damine B in the presence of polyving alcohol was studied.The ion-associate complex exhibits maximum absorptivity at 573nm,and its apparent molar absorpivity was found to be 1.0×105.Beer＇s law is obeyed in the range of 0 to 1.6ug/25mL for boracium.The proposed method has been applied to the determination of B in waste water with satisfactory results.

关 键 词：罗丹明B 分光光度法 硼 

分 类 号：O657.3[理学—分析化学] O613.81[理学—化学]