Table 1.

Analytical attributes of common target molecule assay types.

	Sample throughput (per day)	Sensitivity (LLOD)	Flexibility	Linear response	Dynamic range
Chromatography	10–100	mM	++	+++	+++
Direct mass spectrometry	100–1000	nM	+++	+++	++
Biosensors	1000–10,000	pM	+	+	+
Screens	1000–10,000	nM	+	++	++
Selection	107+	nM	+	+	+

The optimal method for a given criteria is highlighted in bold.