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. 2022 Oct 31;12(12):334. doi: 10.1007/s13205-022-03396-9

Table 4.

Analysis of CO2 in different concentrations with the dyes using sensor prototype

Sl. no. CO2-dye mixture at different concentrations RGB values
1 NR(Nil)PR(Nil)CP(Nil) 260, 185, 23
2 NR(CO2X2) PR(CO2X2) CP(CO2X2) 245, 114, 30
3 NR(CO2X3) PR(CO2X3) CP(CO2X3) 251, 117, 37
4 NR(CO2X4) PR(CO2X4) CP(CO2X4) 255, 124, 45

X1 = 50 ppm, X2 = 60 ppm, X3 = 66 ppm, X4 = 120 ppm