The world-wide aviation jet fuel used for civil and military aircraft is of a kerosene type. To avoid peroxide production after the refinery process a specific antioxidant additive should be added on fuel. The antioxidants generally used are based on hindered phenols in a range of concentration 10-20 mu g/ml. In the present work a specific method to measure the concentration of phenolic antioxidants is shown. The method is based on a liquid chromatographic technique with electrochemical detection. The technique, because of its selectivity, does not require sample pre-treatments. The analysis of a 5-10 mi fuel sample can be performed in less than 10 min with a sensitivity of 0.1 mu g/ml and a RSD=2.5%. A comparison with another highly selective gas chromatographic technique with mass spectrometric detection with selected ion monitoring (GC-MS-SIM) is reported. The sensitivity of GC-MS-SIM method was 2 mu g/ml with a RSD=3.1%. (C) 2000 Elsevier Science B.V. All rights reserved.
Bernabei, M., Bocchinfuso, G., Carrozzo, P., De Angelis, C. (2000). Determination of phenolic antioxidants in aviation jet fuel. JOURNAL OF CHROMATOGRAPHY A, 871(1-2), 235-241 [10.1016/S0021-9673(99)01274-1].
Determination of phenolic antioxidants in aviation jet fuel
Bocchinfuso, G.;
2000-01-01
Abstract
The world-wide aviation jet fuel used for civil and military aircraft is of a kerosene type. To avoid peroxide production after the refinery process a specific antioxidant additive should be added on fuel. The antioxidants generally used are based on hindered phenols in a range of concentration 10-20 mu g/ml. In the present work a specific method to measure the concentration of phenolic antioxidants is shown. The method is based on a liquid chromatographic technique with electrochemical detection. The technique, because of its selectivity, does not require sample pre-treatments. The analysis of a 5-10 mi fuel sample can be performed in less than 10 min with a sensitivity of 0.1 mu g/ml and a RSD=2.5%. A comparison with another highly selective gas chromatographic technique with mass spectrometric detection with selected ion monitoring (GC-MS-SIM) is reported. The sensitivity of GC-MS-SIM method was 2 mu g/ml with a RSD=3.1%. (C) 2000 Elsevier Science B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.