No

Molecular toxin

Molecular structure

Retention (mins)

Molecular formula mass (g/mol)

i

benzene

16.12

78.05

ii

benzaldehyde

18.41

106.04

iii

propylcyclohexane

19.35

126.14

iv

benzofuran

20.15

118.13

v

fluorene

20.43

166.22

vi

anthracene

20.51

178.08

vii

pyrene

22.40

202.08