Exploiting the Lab-on-Valve Concept for Determination of Trace Levels of Metals in Complex Matrices with Detection by ETAAS and ICPMS

Elo Harald Hansen, Jianhua Wang

    Research output: Contribution to conferencePaperResearchpeer-review

    Abstract

    Termed the third generation of flow injection analysis, the Sequential Injection (SI)-Lab-on-Valve (LOV) concept has proven to entail specific advantages and to allow novel and unique applications. Both in term of its use in the automation and micro-miniaturization of suitable on-line sample pretreatments such as separation of the analyte from potentially interfering matrix constituents and preconcentration in order to bring the concentration of the analyte into the dynamic measuring range of the detection device applied, and also as a versatile front end to a variety of detection techniques. Following a brief introduction into the characteristics of the SI-LOV approach, special emphasis is placed on its utilisation in conjunction with the bead injection scheme for on-line separation and preconcentration of ultra-trace levels of metals in complex matrices by exploiting the renewable microcolumn approach [1,2]. Coupled to detection by ETAAS and ICPMS, and illustrated by recent exploits in the authors’ laboratory, it is shown that this methodology eliminates the problems encountered in conventional on-line column preconcentration systems and at the same time improves the overall operational efficiency and yields the robustness necessary for use in routine assays. References 1. J.-H. Wang, E. H. Hansen, J. Anal. At. Spectrom., 16 (2001) 1349. 2. J.-H. Wang, E. H. Hansen, Anal. Chim. Acta, 467 (2002) 3.
    Original languageEnglish
    Publication date2003
    Publication statusPublished - 2003
    Event9th International Conference on Flow Analysis - Geelong, Australia
    Duration: 17 Feb 200321 Feb 2003
    Conference number: 9

    Conference

    Conference9th International Conference on Flow Analysis
    Number9
    CountryAustralia
    CityGeelong
    Period17/02/200321/02/2003

    Fingerprint Dive into the research topics of 'Exploiting the Lab-on-Valve Concept for Determination of Trace Levels of Metals in Complex Matrices with Detection by ETAAS and ICPMS'. Together they form a unique fingerprint.

    Cite this