Table 1. Extraction method comparison: time, material input, cost and throughput.

	Time for 6–12 samples (h)	Minimum input material (µg)	Cost per sample	High throughput compatibility	References
FASP	∼4	10	$5	û	[28,31,48]
SP3	∼3	0.1	$1	✓	[28,48,52]
S-Trap	∼1	0.075	$10	✓	[28,59]