Table 3. Values of Linear Fit Evaluation for the Four Different SMG Calibration Curves.

	1-C16:0	2-C16:0	C18:0	C20:0
equation	y = a + b × x	y = a + b × x	y = a + b × x	y = a + b × x
intercept	–0.017 ± 0.011	0.003 ± 0.018	–0.005 ± 0.006	–0.017 ± 0.007
slope	0.013 ± 4.344 × 10–4	0.031 ± 6.770 × 10–4	0.010 ± 2.568 × 10–4	0.009 ± 2.741 × 10–4
residual sum of squares	0.007	0.020	0.002	0.003
Pearson’s r	0.994	0.998	0.997	0.995
R-square (COD)	0.989	0.995	0.994	0.990