建立了测定谷物中单端孢霉烯族真菌毒素脱氧雪腐镰刀菌烯醇(DON)的简单、快速、灵敏的气相色谱分析方法.将谷物用水打湿,用氯仿-乙醇(8∶2)提取,将提取液浓缩至干,残留物以丙酮溶解.用三甲基硅基咪唑将DON制备成三甲基硅醚衍生物,并对衍生化条件进行了改进.用装有火焰离子化检测器的气相色谱仪定量分析.该法最小检出量为1×10~(-9)g,变异系数为3.11%. A simple, rapid and sensitive gas chromatographic method was developed for the determination of deoxynivalenol (DON), a trichothecene mycotoxin in cereals, which was wetted with water and extracted with chloroform-ethanol (8: 2) Extraction, the extract was concentrated to dryness, the residue was dissolved in acetone DON was prepared with trimethylsilyl imidazole trimethylsilyl derivatives, and derivatisation conditions were improved with a flame ionization detection Gas chromatograph quantitative analysis of the method minimum detection of 1 × 10 ~ (-9) g, coefficient of variation of 3.11%.