title: Analysis of trichothecene mycotoxins in human blood by capillary column gas chromatography-ammonia chemical ionization mass spectrometry.
abstract: Capillary column gas chromatography-ammonia chemical ionization mass spectrometry was found to be an excellent technique for the trace detection and identification of underivatized trichothecene mycotoxins. Abundant (M + H)+ and/or (M + NH4)+ pseudo-molecular ions were observed for T-2 toxin, HT-2 toxin, T-2 triol, diacetoxyscirpenol, deoxynivalenol and verrucarol under the conditions developed. This method was successfully applied to the analysis of human blood samples spiked with mycotoxins in the 0-500 ng/g range during a recent interlaboratory exercise. T-2 toxin and diacetoxyscirpenol were detected in these samples in the 2-180 ng/g range. Detection limits of 0.7 and 3.6 ng/g for T-2 toxin and diacetoxyscirpenol, respectively, were possible owing to the specificity of the method.
mesh_terms: D000641:Ammonia / Q000032:analysis; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D009183:Mycotoxins / Q000097:blood*; D012717:Sesquiterpenes / Q000097:blood*; D014255:Trichothecenes / Q000097:blood*
chemical_list: D009183:Mycotoxins; D012717:Sesquiterpenes; D014255:Trichothecenes; D000641:Ammonia