[Microanalytical GCMS method for the assay of the food additive 2-t-butyl-4-methoxyphenol (BHA) in plasma].

A GC/Ms method is described for the determination of the antioxidant 2-t-butyl-4-methoxyphenol (BHA) in plasma using Sep-Pak C18 cartridges for extraction. Picogram amounts of BHA could be detected in rat plasma with a high degree of specificity, accuracy and significant time and material saving.