Transducer

concentration range
(M)

Slope
(mV/decade)

Detection limit
(M)

Respond times

Reference

Spector
Photometer

5.0×10^-5 – 4.0×10^-2

-

6.0×10^-6

-

[5]

Dissolved
oxygen probe

5.0×10^-5 – 1.2×10^-3

-

5.0×10^-5

-

[9]

ethylene vinylacetate membrane

8.0×10^-6 – 4.5×10^-4

50.3 ± 0.6

8.0×10^-6

5 min

[10]

ISFET

2.0×10^-5 – 1.3×10^-3

18

1.0×10^-5

-

[11]

Screen-printed
Electrode

2.0×10^-5 – 1.0×10^-3

13.85

2.0×10^-5

-

[45]

ISFET

5.0×10^-4 – 2.0×10^-3

10

0.5×10^-3

-

[52]

Screen-printed
Electrode

5.0×10^-6 – 5.0×10^-3

-

2.6×10^-6

-

[53]

Oxygen
Electrode

6.3×10^-5 – 5.0×10^-4

-

6.3×10^-5

-

[54]

Luminol electrochemiluminescence

2.5×10^-8 – 1.0×10^-4

-

2.5× 10^-8

-

[55]

Potentiometric
(ZnO nanorods)

1.0×10^-6 – 5.0×10^-2

32

1.0×10^-6

˂ 10 s

present study