pre-separation extraction method
...萃取工艺； 萃取预分离法； 稀土[gap=1528]Key words: middle Y and rich Eu mineral; extraction separation process; pre-separation extraction method; rare earth...
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pre-separation extraction method
预分离萃取法
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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A method for the spectrophotometric determination of trace Cu 2+ with flow injection liquid liquid extraction separation and pre concentration was developed.
用自制的分相器与流动注射仪联用，对有机相析出液- 液萃取光度法测定微量铜的流路参数和操作程序进行优化。
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