Table 1. Performance of CV, DPV and OECT in the detection of AA, DA and UA.

	Three electrode cell				OECT
	CV		DPV
	Epaa (V vs SCE)	Sensitivityb(LOD)c	Sensitivityb(LOD)c	Sensitivitye	Sensitivityd(LOD)c	Sensitivitye
AA	0.29	0.063 ± 0.005(1 10−4)	0.00967 ± 0.0003(2 10−5)	0.193 ± 0.003	0.102 ± 0.004(7 10−5)	0.85 ± 0.03
DA	0.35	0.109 ± 0.009(3 10−4)	0.448 ± 0.006(2 10−6)	9.0 ± 0.1	1.09 ± 0.04(6 10−6)	9.1 ± 0.3
UA	0.41	0.090 ± 0.002(2 10−4)	0.065 ± 0.001(6 10−6)	1.30 ± 0.02	0.40 ± 0.01(2 10−5)	3.33 ± 0.08

^aanodic peak potentials evaluated by CV for 1 mM solutions.

^bexpressed in A M⁻¹ cm⁻².

^cexpressed in M.

^dexpressed in S M⁻¹.

^enormalized sensitivity expressed in S M⁻¹ cm⁻². The DPV and OECT sensitivities are normalized to pulse amplitude and gate area, respectively.