Table 3.

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

	Sample 1	Sample 2	Sample 3
% Relative error	− 3.89	4.03	− 0.40
% RSD	3.52	3.70	4.37
LOD (µg/mL)	0.77
LOQ (µg/mL)	2.34