Based on correlation coefficients and principal component analysis, fe and al were selected as the concentration normalizer for the different trace metals.

由相关系数和主成份分析，选择铁和铝作为沉积物中痕量金属浓度的均一化元素。

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To teach fundamental concepts for understanding the behavior of inorganic species, such as carbonate and trace metals, in aquatic systems.

讲授基本概念以理解水系统的无机物种类的行为，例如碳酸盐和痕量金属。

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The food industry is also trying to restructure ingredients at the nanoscale so as to include particles of trace metals in food supplements and to produce less-fattening foods.

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Rather, as a consequence of injecting water and sand into the shale formation to crack the rocks so gas and oil will flow, massive amounts of waste water comes back to the surface with significant amounts of contaminants as a result of leaching out salt, heavy metals and trace amounts of radioactive materials from the rock formation itself.

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Like other iron minerals, green rust readily absorbs dissolved elements onto its surface, but green rust is not only particularly efficient at this in many cases, it can also react with toxic dissolved trace metals to make them insoluble, and as a result, renders them in nontoxic forms.

MSN: What green rust did long ago to the big blue ocean