Table 3.

Comparison of the mean value and uncertainty for measured concentrations using the electrochemical sensor, the Nanodrop™ spectrophotometer and the colorimetric assays.

Sample	Gene	Concentration (ng/μL)
		Sensor	Nanodrop	Colorimetry
L9	N	2.42 ± 0.26	2.29 ± 0.17	2.15 ± 0.38
	ORF1ab	2.60 ± 0.28	2.77 ± 0.13	2.84 ± 0.18
IPS	N	3.15 ± 0.42	3.47 ± 0.04	2.98 ± 0.32
	ORF1ab	3.45 ± 0.86	3.69 ± 0.03	3.01 ± 0.14
ISR	N	2.71 ± 0.47	2.82 ± 0.13	2.90 ± 0.50
	ORF1ab	1.95 ± 0.34	1.99 ± 0.05	2.03 ± 0.45