The Open Fuels & Energy Science Journal

2008, 1 : 51-53
Published online 2008 September 12. DOI: 10.2174/1876973X00801010051
Publisher ID: TOEFJ-1-51

Short-Wave Near-Infrared Spectroscopy for Rapid Quantification of Acidity of Aviation Kerosene

Zhi-na Xing , Ju-xiang Wang and Gang Shen
104 Staff Room, Naval Aeronautical Engineering Institute, Yantai, Shandong Postcard: 264001, China.

ABSTRACT

The application of short-wave near-infrared spectroscopy (SW-NIRS) in acidity of aviation kerosene was described on the term of chemometrics. This spectral region is interesting because this type of spectrometer reduces costs in comparison with traditional long-wave near-infrared (LW-NIR) instrument. The SW-NIR calibration models of aviation kerosene were established by partial least square regression (PLS). Satisfactory calibration statistics were obtained with a standard error of calibration (SEC) of 0.028 mgKOH/100mL and a standard error of prediction (SEP) of 0.036 mgKOH/100mL. A t-test showed that the NIRS model had an accuracy equivalent to that of GB/T 264-91, which was equal to ASTM D 847, in the analysis of acidity of aviation kerosene. The NIRS method had the advantages of rapid analysis, better repeatability, little simple, and online analysis, etc.

Keywords:

Aviation kerosene, acidity, short-wave near-infrared spectroscopy (SW-NIRS).