【摘要】 在 p H=9.5碱性条件下 Mn( )能与 1 ,1 0 -二氮杂菲 ( Phen)形成配位阳离子 [Mn( Phen) 3 ]2 + ,该阳离子易与四碘荧光素 ( TIF)形成缔合物。缔合物在苯中稳定 ,据此建立了用 N2 浮选三元缔合物于苯中的光度法测定锰的新体系 ,本法灵敏度高 ( ε=9.6× 1 0 5L·mol- 1·cm- 1)。实测了天然水和酒中 Mn( ) ,结果令人满意更多还原

【Abstract】 This article introduces a new solvent flotation spectrophotometry for the determination of Mn (Ⅱ) with ternary complex of Mn (Ⅱ)-Phen-TIF flotation in benzene by N 2. Its principle is that Mn (Ⅱ) can react with Phen to form [Mn(Phen) 3] 2+ in alkali condition (pH=9.5), and then [Mn(Phen) 3] 2+ reacts with TIF to form stable associate in organic solvent benzene. The method shows high sensitivity (ε=9.6×10 5 L·mol -1·cm -1) . The practical determination results of Mn (Ⅱ) in natural water and alcohol are satisfactory.更多还原