Hydrocarbons Fraction

m/z

Standard

Marker

Beginning Marker

Ending

Marker

C5-C8 Aliphatic saturated, unsaturated, cyclic hydrocarbons

57 - 71 - 41

n-pentane 2-methylpentane 2,2,4-trimethylpentane

0.1 min before

n-pentane

0.1 min before

n-nonane

C9-C12 Aliphatic saturated, unsaturated, cyclic hydrocarbons

57 - 71 - 41

n-nonane n-butylcyclohexane n-decane n-dodecane

0.1 min before

n-nonane

0.1 min before

naphtalene

C9-C10 Aromatic

120 - 134^*

1,2,4-trimethylbenzene butylbenzene

0.1 min after

o-xylene

0.1 min before

naphtalene

C11-C12 Aromatic

148 - 154 - 162 - 115

Pentylbenzene biphenyl

0.1 min before

pentylbenzene

0.1 min after

biphenyl

C13-C18 Aliphatic saturated, unsaturated, cyclic hydrocarbons

57 - 71 - 41

n-tetradecane n-hexadecane n-octadecane

0.1 min after

n-dodecane

0.1 min after

n-octadecane