[Determination of 2,6-di-tertbutyl-4-methylphenol in an aviation jet fuel by high performance liquid chromatography].

The content of antioxidant of 2,6 di tertbutyl 4 methylphenol(BHT) in a new aviation jet fuel (HDF 1) was determined by high performance liquid chromatography. The influences of the volume ratio of methanol and acetate buffer and the flow rate for BHT separation from HDF 1 were studied and the best analysis conditions were obtained. The optimum volume ratio is 85∶15 and the optimum flow rate is 1 mL/min. The relation of BHT mass fraction and its peak area has been analyzed and simulated. It was found that they had a good linear relationship.