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This review summaries the application of ion exchangers in the separation and determination of alkali metals, alkali-earth metals, noble metals, rare earth elements and actinoid.

离子交换萃取色谱得到了广泛的应用，本文详细总结了离子交换用于碱金属、碱土金属、贵金属、稀土元素、锕系元素等的离与测定。

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Objective:to study the chemical constituents of the essential oil of Inula helenium L.were extracted by steam distillation(SD)and supercritical-CO2 fluid(SFE).

研究土木香挥发油的成,并比较水蒸气蒸馏提取(SD)与超临界CO2萃取(SFE)所得土木香挥发性成的差异。

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family court, family doctor, family history, family home, family man, family medicine, family name, family planning, family relationship, family therapy,

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3G, 401(K), a,

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PBS地球-俯瞰世界

In order to extract rare earth elements from the Berkeley pit, researchers are testing new chemical techniques that could bind specifically to rare earth elements.

为从伯坑水体中提稀土元素，究人员正在试验新型化技术，精准吸附分离稀土物质。

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famous, famously, famphur, famulus, fan, fan blade, fanaloka, fanasil, fanatic, fanatical,

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