Evaluation and comparison of short chain fatty acids composition in gut diseases

Table 5 Linear regressions data, R-squared and limit of detection values obtained for each analyte

Compound	Slope PAR (µg/mL)	Intercept PAR (µg/mL)	R2	LOD SDY-I (µg/mL)
Acetic	0.027	- 0.025	0.996	11.3
Propionic	0.088	- 0.142	0.996	5.9
Butyric	0.213	- 0.552	0.993	7.9
Isobutyric	0.357	- 0.153	0.994	1.4
Valeric	0.406	- 0.297	0.993	1.6
Isovaleric	0.459	- 0.327	0.991	1.7

PAR: Peak area ratios; R²: r-squared; LOD: Limit of detection; SDY-I: Standard deviation of y-intercepts.