富集（enrichment） 从大量母体物质中搜集欲测定的痕量元素至一较小体积，从而提高其含量至测定下限以上的这一操作步骤。试样中含量少于0.01%的痕量物质，如果它的含量低于分析方法的测定下限，就必须采用预富集的方法。
富集 [fù jí]
n. enrichment ; gathering ; beneficiation
双语例句原声例句
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溶液中的盐份富集在聚合物分子的带电基团附近，并形成盐浓度梯度分布。
Salts are enriched around electriferous groups of polymer molecules in solution, which formed a salt concentration gradient.
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芥科植物、大戟科植物、豆科植物和禾本科植物中的许多植物都是顶级的超富集植物。
Many members of the mustard family, spurge family, legume family, and grass family are top hyperaccumulators.
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许多超富集植物被发现于热带地区和亚热带地区，在那里，高浓度金属元素的积累可以为植物提供保护来对抗以植物为食的昆虫和细菌病原体。
Many are found in tropical and subtropical areas of the world, where the accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
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It's a protein that's produced by other cells in the body and when it's enriched in a certain area it stimulates more production of red blood cells.
这种蛋白由体内的另一种细胞生成,而当其在某处富集时,就会刺激红细胞生成
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You'd want to make sure that you separated the virus from all the other parts of cow skin so that your ultimate preparation was enriched in the virus and didn't contain quantities of other things that would be hazardous.
你要保证,你从所有的牛皮组织上分离出病毒,这样最终的制剂产品才会富集病毒,并且不会携带其它物质,这些物质可能带来危险
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