2.10. Statistical analyses
All analyses were performed in triplicate and the mean values were used to express the results. The figures were plotted using
Origin Pro 7.5, and the correlation coefficients and standard devia- tions were used to evaluate the correlations and deviations.
3. Results
3.1. Calibration
The calibration samples consisted of TFA-free oil spiked with varying amounts of trielaidin, representing a TFA range of 0–20%. The concentration of TFA was plotted against the area of TFA mea- sured at 990–945 cm