Fig. 1. Absorbance spectra of (a) original and (b) pre-treated diesel samples at 25 ℃ temperature environment

Fig. 2. (a) Relationship between residuals errors of calibration set (RMSEC) and prediction set (RMSEP) and factor numbers; (b) Prediction results of condensation point under the environment temperature of 25 ℃

Fig. 3. Comparison of valuesof prediction deviation of condensation pointbased on (a) temperatures-free compensation model and (b) temperatures-compensation model

Fig. 4. Comparison of values of condensation point of diesel based on (a) temperatures-free compensation model and (b) temperatures-compensation model at ambient temperature of 10 ℃

Fig. 5. Comparison of -54 ℃ samples at different temperatures before and after temperature correction