Skip to main content

Values used to plot the second graph

AbsorbanceRGB
Mean pH 0,540,011,320,91
Mean pH 1,520,0161,220,79
Mean pH 1,990,0230,970,57
Mean pH 2,490,040,820,52
Mean pH 3,030,040,470,26
Mean pH 4,060,0630,170,083
Mean pH 5,140,0630,150,08
Mean pH 6,010,080,210,12
Mean pH 7,060,180,140,11
Mean pH 8,40,0830,170,09
Mean pH 9,90,130,170,09
Mean pH 11,090,360,150,27
Mean pH 11,90,120,110,47
Mean pH 12.100,0830,130,56
Mean pH 13,20,020,160,8

All the values we measured

(*) For some pH we performed other measures with buffers, using NaOH, HCl and K2HPO4.

pH 0,54

AbsorbanceRGB
Sample 10,011,190,79
Sample 20,011,370,97
Sample 30,011,40,97

pH 1,52

AbsorbanceRGB
Sample 10,011,230,81
Sample 20,021,280,84
Sample 30,021,140,71

pH 1,99

AbsorbanceRGB
Sample 10,020,970,58
Sample 20,020,990,57
Sample 30,030,950,55

pH 2,49 *

AbsorbanceRGB
Sample 10,040,90,57
Sample 20,050,790,51
Sample 30,030,780,48

pH 3,03 *

AbsorbanceRGB
Sample 10,050,520,28
Sample 20,040,470,26
Sample 30,030,430,24

pH 4,06

AbsorbanceRGB
Sample 10,070,160,08
Sample 20,060,170,09
Sample 30,060,180,08

pH 5,14

AbsorbanceRGB
Sample 10,060,140,08
Sample 20,070,160,08
Sample 30,060,160,08

pH 6,01 *

AbsorbanceRGB
Sample 10,080,20,11
Sample 20,080,240,13
Sample 30,080,180,11

pH 7,06 *

AbsorbanceRGB
Sample 10,150,140,09
Sample 10,20,170,12
Sample 10,180,120,11

pH 8,40 *

AbsorbanceRGB
Sample 10,090,180,09
Sample 20,080,160,08
Sample 30,080,160,1

pH 9,90

AbsorbanceRGB
Sample 10,120,130,08
Sample 20,140,20,11
Sample 30,120,170,08

pH 11,09

AbsorbanceRGB
Sample 10,340,130,22
Sample 20,370,170,29
Sample 30,370,160,3

pH 11,90

AbsorbanceRGB
Sample 10,190,120,47
Sample 20,110,10,43
Sample 30,070,10,51

pH 12,10 *

AbsorbanceRGB
Sample 10,090,10,53
Sample 10,090,130,57
Sample 10,070,160,57

pH 13,20

AbsorbanceRGB
Sample 10,020,170,75
Sample 20,030,160,88
Sample 30,020,160,76