doi: 10.1016/s0021-9673(00)90970-1.
Spectrodensitometric determination of trichothecene mycotoxins with 4-(p-nitrobenzyl)pyridine on silica gel thin-layer chromatograms
- PMID: 232885
- DOI: 10.1016/s0021-9673(00)90970-1
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Spectrodensitometric determination of trichothecene mycotoxins with 4-(p-nitrobenzyl)pyridine on silica gel thin-layer chromatograms
J Chromatogr.
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Abstract
A simple method for the detection and spectrodensitometric determination of a number of trichothecene mycotoxins on silica gel layers based on a colour reaction between 4-(p-nitrobenzyl)pyridine and the 12,13-epoxy group in the trichothecene nucleus is described. The detection limits for the twelve trichothecenes examined were 0.025--0.2 micrograms per spot. Further, six of the twelve trichothecenes could be determined spectrodensitometrically in the range from ca. 0.05--0.2 to 10 micrograms per spot with a coefficient of variation of ca. 5%.
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