Table 1 Response analysis of different channels to different ethanol concentrations

1

y = 7.45456 + 0.5329*ln(x−0.09696)

0.959

0.100

4.28–9.95

2

y = 7.28954 + 0.5688*ln(x−0.09619)

0.964

0.109

4.79–9.96

3

y = − 0.657 + 1.40045*ln(x + 2.16909)

0.999

0.261

0.59–6.80

4

y = 0.81894 + 1.41856*ln(x + 0.85516)

0.998

0.211

0.91–8.18

5

y = 5.61217 + 0.96626*ln(x−0.0855)

0.926

0.115

2.21–9.98

6

y = 1.81811 + 1.26012*ln(x + 0.40906)

0.996

0.227

1.25–8.20

7

y = 1.14642 + 1.3473*ln(x + 0.58003)

0.996

0.324

1.01–8.05

8

y = − 2.48811 + 1.77626*ln(x + 5.16912)

0.997

0.324

0.54–6.80

9

y = − 2.23548 + 1.73201*ln(x + 4.61661)

0.997

0.358

0.54–6.79

10

Insensitive

–

–

–

11

Insensitive

–

–

–

12

Insensitive

–

–

–

13

Insensitive

–

–

–

14

Insensitive

–

–

–

15

Insensitive

–

–

–

16

Insensitive

–

–

–