Table 2.

Summary of validation study.

Validation experiment	PA	2-EPA	2-1-MEPA	VA	MgVA
Specificity	No interference	No interference	No interference	No interference	No interference
LOQ (μg/mL)	2.0	2.0	2.0	2.0	2.0
LOD (μg/mL)	1.0	1.0	1.0	1.0	1.0
Linearity
(I) Correlation coefficient	0.999	0.998	0.999	0.997	0.998
(II) Regression equation	y = 10.15x − 4.714	y = 10.06x + 21	y = 10.12x + 5.285	y = 10.37x − 21.85	y = 10.29x − 13.28
Method precision (n = 6)	%RSD = 0.2	%RSD = 0.2	%RSD = 0.2	%RSD = 1.2	%RSD = 0.1
Int. precision (n = 6)	%RSD = 1.2	%RSD = 0.8	%RSD = 0.8	%RSD = 1.8	%RSD = 0.7
Accuracy (% recovery)	99–101	98–100	99-100	98–102	99-100
Robustness	No significant change	No significant change	No significant change	No significant change	No significant change