No

Concentration
of phenanthrene
g / 100ml

Absorption
of solution 1
(UV 270nm)

Absorption
of solution 2
(UV 270nm

Adsorption efficiency
%

Adsorption capacity of AC  mg/g

1

0.0100

0.9928

0.0012

99.879

19.975

2

0.0102

0.9937

0.0011

99.889

20.377

3

0.0101

0.9925

0.0007

99.929

20.185

4

0.0100

0.9927

0.0006

99.939

19.987

5

0.0103

0.9931

0.0008

99.919

20.583

Average

0.0101

0.9930

0.0009

99.911

20.222