【摘要】 本文利用Cu²⁺与I^-反应生成I₂不经萃取而直接利用镀银压电石英晶体从10m mol/L六胺—1m mol/L NaF—3m mol/L KI底液中吸附I₂,从而测定了0.02～1μg/ml（0.3～16μmol/L）的铜（Ⅱ）。方法简捷,常见阳离子除Ag⁺,Hg²⁺外均无干扰,可用于铸造锌、铝合金屑中微量铜的测定。更多还原

【Abstract】 Iodine, produced in the reaction of copper (Ⅱ) with iodide, was adsorbed on the silver electrode of the piezoelectric crystal. 0.02—1.0μg/ml (0.3—15.7 μM) copper (Ⅱ) can be determined by measuring the freqency shift caused by the iodine adsorption. The method has been suggested for the determination of copper in zinc and aluminium alloys.更多还原