流动注射预富集-液相色谱联机测定痕量镍、铜、汞的研究

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萃取-液相色谱用于同时测定痕量金属离子已引起广泛重视[1~3],但操作方法繁琐,样品易玷污[4].
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共混物相分离的机理已有研究[1].但对共混物分散相的粗化过程的研究则不多见.1977年,Cahn等[2]预言第三相界面与低分子共混物之间存在的浸润作用对相分离过程应有较大影响.近年Tanaka等[3]的研究结果表明