Table 2.

Comparison of recTDP-43 dilution series against detection criteria of S/N ≥ 3 and PAR within ±15% of expected (ePAR) for TDP_252-263.

TDP-43 (ng/mL)	S/N	% from ePARa
		Qualifier-1 (448.5 m/z)	Qualifier-2 (758.6 m/z)
500	>100	−4	0
250	>100	−4	0
125	>100	−11	0
62.5	>100	−14	0
31.25	>100	−4	−11
15.63	>100	−11	−11
7.81	>73	−11	−11
3.91	>35	−11	−11
1.95b	>22	−14	−56
0.98b	>16	−4	−22
0.49b	8	+36	−22
0.24b	3	−25	+11

^aDeviation from the expected peak area ratio for recTDP-43.

^bFailed detection criteria.