Speciation analysis of trace elements is new subject.
元素的形态分析是一新兴研究课题。
参考来源 - 无机态金属元素的分离与价态分析The research results obtained by speciation analysis showed that Cu mainlyexist in residual fraction,and the amount of effective fractions only occupied 50% ofthe total content.
通过对重金属形态分析的研究发现，在沉积物样品中，铜主要以残渣态的形式存在，有效态(其它四态总和)含量占其总量不到50％。
参考来源 - 饶河口沉积物对铜吸附与释放特性的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Objective:To develop some methods for arsenic speciation analysis which are suitable for sea animals and seaweeds.
目的：针对动物类海产品、藻类样品，建立相应的砷形态分析方法。
The prospect and problems of speciation analysis of trace element in Traditional Chinese Medicine were also discussed.
探讨了中药中微量元素形态分析方法的前景及存在的问题。
The recent development of speciation analysis of trace elements in medicinal plants is reviewed, the prospect is also discussed.
评述了药用植物中微量元素形态分析的现状，并对其发展前景作了展望。
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