Voltammetric Determination of Uric Acid in Clinical Serum Samples Using DMF Modified Screen Printed Carbon Electrodes

Table 2

Accuracy of UA detection with the developed sensor evaluated through determination of percent recovery.

Sample	Signal (peak current (µA)x10)				Concentration of uric acid added (µM)			% Recovery
	E1	E2	E3	Mean	Spiked	Expected UA (µM)	Found UA (µM)
Serum sample	1.02	1.15	1.05	1.17	0.00	- - - - -	13.7 ± 0.125	- - - - -
	2.67	2.69	2.57	2.64	36.3	49.05	52.67 ± 0.013	107.33 ± 1.12
	5.28	5.30	5.29	5.30	0.00	- - - - - - -	213.7 ± 0.017	- - - - - - -
	5.48	5.46	5.44	5.46	36.3	250	247.7 ± 0.0125	93.7 ± 2.35

(52.67-13.7)x100%/36.3; (230.7-213.7)x100%/36.3.