Table 3.

Performance data of the methyl ester of indole-3-carboxylic acid (ICA-ME) quantification method.

ICA-ME (RI = 1535)	Intercept $\left(\mathit{a}\pm {\mathit{s}}_{\mathit{a}}\right)$	Slope $\left(\mathit{b}\pm {\mathit{s}}_{\mathit{b}}\right)$ $\left(\mathbf{L}·\mathbf{m}{\mathbf{g}}^{-1}\right)$	${\mathit{s}}_{\mathit{y}/\mathit{x}}$	R2	LOD (mg L−1)	LOQ (mg L−1)
	−0.0171 ± 0.0089	0.00604 ± 0.00015	0.0124	0.997	4.9	14.8