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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/7944

Title: Plasma-based mass spectrometry for simultaneous acquisition of elemental and molecular information
Author(s): Solà Vázquez, Auristela
Costa Fernández, José Manuel
Pereiro García, María Rosario
Sanz Medel, Alfredo
Keywords: Inductively Coupled Plasma/Ms, Speciation.
Issue date: 2011
Publisher version: http://dx.doi.org/10.1039/c0an00581a
Citation: Analyst, 136(2), p. 246-256 (2011); doi:10.1039/c0an00581a
Format extent: p. 246-256
Abstract: Chemical speciation studies are commonly accomplished by resorting to hyphenated analytical techniques, consisting of a powerful chromatographic separation technique coupled to a highly sensitive elemental spectrometric detector. However, in addition to this element-selective information, complementary molecular spectrometric tools are often required for a complete identification of macromolecules. Therefore, there is an increased research effort focused towards the development of integrated instruments to carry out the complete chemical speciation within a sample using a single instrument. An outline of recent developments in plasma-based mass spectrometric instrumentation for such comprehensive chemical speciation studies is here presented and their pros and cons detailed. In this context, the use of complementary techniques operating in parallel after splitting to a single chromatographic separation (dual sources) providing simultaneously elemental and molecular information is critically reviewed. Also, instrumental developments involving the use of stationary plasma sources operated in non-traditional modes (e.g. low pressure and low power) are also discussed. Moreover, the capabilities of tunable plasma-based ionization sources (allowing different ionization processes and, so, quasi-simultaneously providing elemental and molecular information with a single instrument) as a relatively simple and cheap approach are revised.
URI: http://hdl.handle.net/10651/7944
ISSN: 0003-2654
Sponsored: This work was supported by project CTQ2006-02309 (Spanish Ministry of Science and Innovation and EU FEDER Programme).
Project id.: CTQ2006-02309
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