Table 1.

Validation parameters for the liquid chromatography method.

Acid	Linearity (r2)	Slope (y)	Response (Sy)	Sy/y	LOD * (µg·mL−1)	LOQ ** (µg·mL−1)
Tartaric	0.9992	5034.58	9870.7	1.96	6.46	19.6
Ascorbic	0.9998	8025.61	6625.4	0.82	2.72	8.25
Citric	0.9998	34,189.52	32,649.86	0.95	3.15	9.54
Malic	0.9998	6714	5509.95	0.82	2.7	8.2
Lactic	0.9996	4746.69	6666.9	1.4	4.63	14.04
Aconitic	0.9999	2918.31	2134.37	0.73	2.41	7.31

* Limit of detection; ** Limit of quantification.