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在碱性条件下, Cu ? 与福美双( N C H3 C H3 C S S S C S C H3 C H3 ) 形成稳定的桔红色配合物,配合物的λm ax = 452 n m , 表观摩尔吸光系数ε= 1 .2 ×10 4 。铜含量在0 ~10 μg/ m L 范围内符合比耳定律。
Under basic conditions, Cu? Forms a stable orange-red complex with thiocyanate (λ C ax = 452 n m), with apparent molar absorptivity The coefficient ε = 1. 2 × 10 4. Beer’s law is consistent with copper content in the range of 0 to 10 μg / m L.