Determination of Methyl Isothiocyanate in Wine by GC and GC/MS

A simple and rapid determination method of methyl isothiocyanate (MITC) in wine was developed. MITC in wine was extracted with ethyl acetate and the extract was subjected to NPD-GC and GC/MS. The determination limits were 0.02ppm with NPD-GC, 0.22ppm with FPD-GC (S-mode) and 0.05ppm with GC/MS. Recoveries from wine spiked with 0.044 and 0.088ppm of MITC were 89.4% and 83.5%, respectively, from white wine and 81.6% and 75.1%, respectively, from red wine.MITC in wine imported from Italy was detected in the range of 0.087 to 0.349ppm in three brands out of 30 examined.