Embedded Based Miniaturized Universal Electrochemical Sensing Platform

Table 2

Measurement results of the second test.

Actual concentration (ppm)	Test concentration (ppm)	Absolute error (ppm)
1	3	2
5	5	0
10	11	1
20	16	4
30	28	2
50	43	7
75	64	11
100	92	8
150	139	11