Elemental speciation with plasma mass spectrometry.
Elemental speciation with plasma mass spectrometry.
复制标题
用等离子体质谱法进行元素形态分析。
DOI：
10.1021/ac00061a002
复制
发表时间：
1993
影响因子：
7.4
通讯作者：
Caruso,JA
中科院分区：
文献类型：
--
作者：
Vela,NP;Olson,LK;Caruso,JA
元素形态被定义为元素化学形态的识别和定量，包括金属和非金属。该化学形式可以是无机形式的氧化态；它还可以取决于有机金属化合物的取代基的类型和数量。从风险评估的角度来看，定量样品的总元素含量来定义毒性已不再足够。因此，元素形态分析给分析化学家带来了持续的挑战。微量元素形态分析需要两种互补的技术。一种提供高效可靠的分离程序，另一种提供充分的检测和定量。这些技术的结合需要样品引入兼容性和较小的仪器修改，以实现每种技术的最大效率和响应。此外，分离过程中实时数据采集的可能性也是可取的。
Elemental speciation is defined as the identification and quantitation of the chemical form of an element, in-cluding metals and nonmetals. This chemical form can be the oxidation state of an inorganic form; it can also depend on the type and number of substituents of organometallic com-pounds. From a risk assessment perspective, it is no longer sufficient to quantitate the total elemental con-tent of samples to define toxicity. Thus elemental speciation offers a continuing challenge for the analyti-cal chemist.Two complementary techniques are necessary for trace element spe-ciation. One provides an efficient and reliable separation procedure, and the other provides adequate de-tection and quantitation. The cou-pling of these techniques requires sample introduction compatibility and minor instrumental modifications with maximum efficiency and response of each technique. In addition, the possibility of real-time data acquisition for the separation pro-cess is desirable.