Compound

Concentration in tap water (%, mean ± S.D., n = 4)

Relative recovery

r² (Average)

Phenol

2-CP

4-CP

2,6-DCP

2,4-DCP

2,4,6-TCP

2-PP

3-PP

4-PP

N.D.

N.D.

N.D.

N.D.

N.D.

N.D.

N.D.

N.D.

N.D.

94.4 ± 6.2

105.9 ± 3.9

109.2 ± 8.5

94.9 ± 4.2

109.0 ± 8.7

107.3 ± 6.8

104.3 ± 5.6

107.0 ± 6.2

107.5 ± 5.3

0.9993

0.9972

0.9982

0.9961

0.9932

0.9964

0.9989

0.9941

0.9956