Table 1 Chemical composition of the essential oil of Pelargonium graveolens.

From: The anti-nociceptive and anti-inflammatory effects of Pelargonium graveolens essential oil nanoemulsion in mice

Entry

Retention time (min)

Compounda

Content (%)

Retention indices (RI)b

1

6.17

α-pinene

0.4

940

2

8.90

p-cymene

0.1

1030

3

9.04

Limonenec

0.3

1032

4

10.66

cis-linalool oxide

0.2

1075

5

11.26

trans-linalool oxide

0.1

1090

6

11.71

Linaloolc

6.8

1102

7

12.11

cis-rose oxide

1.2

1110

8

12.78

trans-rose oxide

0.4

1127

9

13.88

Menthonec

3.9

1157

10

14.33

Iso-menthone

3.0

1165

11

15.45

α-terpineol

0.6

1190

12

17.04

Citronellolc

34.9

1232

13

17.53

Neral

0.5

1240

14

18.16

Geraniolc

16.1

1257

15

18.79

Geranialc

0.9

1272

16

19.00

Citronellyl formate

12.3

1278

17

20.15

Neryl formate

4.6

1280

18

22.30

Citronellyl acetate

0.8

1356

19

23.23

α-copaene

0.3

1378

20

23.61

β-bourbonene

1.5

1385

21

25.03

(E)-caryophyllene

0.8

1425

22

25.99

Citronellyl propanoate

1.4

1446

23

26.23

α-humulene

0.1

1461

24

27.28

Geranyl propanoate

0.5

1475

25

29.22

trans-calamenene

1.1

1526

26

29.38

Citronellyl butanoate

0.5

1534

27

30.08

α-agarofuran

0.2

1553

28

30.65

Geranyl butanoate

1.1

1570

29

31.63

2-Phenyl ethyl tiglate

0.5

1587

30

32.94

10-epi-γ-eudesmol

4.0

1620

31

35.91

Geranyl tiglate

0.3

1698

Class of compoundsd

–

MH

0.8

–

–

OM

90.1

–

–

SH

3.8

–

–

OS

4.2

–

  1. aCompounds were listed in order of elution on a DB-5 column; bThe retention indices (RI) of the compounds were determined by co-injection of a homologous series of n-alkanes C8–C24 on the DB-5 column; cThe authentic standards available were used for co-injection/comparison analysis; dClass of compounds, MH: Monoterpene Hydrocarbons, OM: Oxygenated Monoterpenes, SH: Sesquiterpene Hydrocarbons, OS: Oxygenated Sesquiterpenes.
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