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Introduction

The Mass Spectrometry Unit of the University of Oviedo offers elemental and molecular chemical analysis services. For this purpose, it deploys devices with different ionisation sources both of plasma (inorganic elemental analysis), and electron-impact, of electrospray and matrix-assisted laser desorption ionisation (molecular analysis).

  • Inorganic Elemental Analysis

    The Mass Spectrometry devices with Inductively Coupled Plasma-Mass Spectrometers (ICP-MS) provide elementary information (qualitative, semi-quantitative and quantitative analysis) and measurement of isotope ratios through a wide variety of samples. Inductively Couple Plasma (ICP) is an ionisation source at atmospheric pressure that allows the continuous introduction of liquid (by means of nebulisation), solid (by means of laser ablation) or gaseous samples (Gas Chromatography ICP-MS or hydride generation).

    For further information: Tutorial

  • Organic Structural Analysis

    Molecular Mass Spectrometry techniques can be used for diverse applications due to the wide range of information they provide. On the one hand, organic structural analysis involves figuring out the chemical structure of an unknown molecule according to its mass spectrum. For that, the molecule to be studied is bombarded with accelerated electrons (electron-impact source). The result is the breakup of the molecule into molecular fragments that can be studied through its mass spectrum. Since the fragmentation of a molecule by means of electron-impact is always the same, the study of its mass spectrum can be used to identify that molecule when its spectrum is known. The determination of the molecule's exact mass in a high-resolution equipment is used to clearly establish the structure of said molecule. On the other hand, the sensitivity and selectivity that the measurement of the exact mass provides make this technique a very valuable tool in the detection and confirmation of compounds of interest in different types of samples (biological or environmental among others) also providing quantitative information.

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The equipment of these facilities is co-financed by the European Regional Development Fund (ERDF), with the management of the Ministry of Economy and Competitiveness.

The equipment of these facilities is co-financed by the European Regional Development Fund (ERDF), with the management of the Ministry of Economy and Competitiveness.