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Electrospray Mass Spectrometry for Mycotoxin Detection and Purity Analysis

  • Jon G. Wilkes
  • Jackson O. LayJr.
Part of the Methods in Molecular Biology™ book series (MIMB, volume 157)

Abstract

Gas Liquid Chromatography (GLC) has been used to separate a few mycotoxin types: trichothecenes, zearalenone, patulin, and anthraquinones (1, 2, 3, 4, 5, 6, 7, 8, 9). In contrast, most of the known mycotoxins are amenable to high performance liquid chromatographic (HPLC) separation (10). Accordingly, Frisvad and Thrane developed a general reversed-phase HPLC analysis procedure for simultaneous separation and detection of 182 mycotoxins and other fungal metabolites (10). This very versatile approach involved the temporal spectroscopic (UV) detection of the chromatographically separated mycotoxins. However, some recently identified mycotoxin classes, (fumonisins and AAL toxins) although amenable to HPLC separation, lack the UV chromophores required for detection using this method. For these toxins, HPLC analysis is most easily accomplished using another approach for the detection step. Electrospray ionization (ES) mass spectrometry (MS) is well suited for mycotoxin analysis, especially for the larger, less volatile toxins not amenable to gas chromatography (GC) and particularly for those like the fumonisins and AAL toxins lacking strong UV chromophores. Moreover ES is an ionization method developed in response to the need for direct MS characterization of HPLC separated components.

Keywords

High Performance Liquid Chromatographic High Performance Liquid Chromatographic High Performance Liquid Chromatographic System Evaporative Light Scatter Detection High Performance Liquid Chromatographic Column 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Humana Press Inc. 2001

Authors and Affiliations

  • Jon G. Wilkes
    • 1
  • Jackson O. LayJr.
    • 1
  1. 1.National Center for Toxicological ResearchFood and Drug AdministrationJefferson

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