Table 2.

The figures of merits of the SFPE-vials-LCMS procedure.

	Sample 1	Sample 2	Sample 3
% Relative error	− 4.60	− 2.28	0.60
% RSD	1.18	2.26	1.50
LOD (µg/mL)	0.53
LOQ (µg/mL)	1.61