Table I.
GCMS detection of fatty acids and related compounds in rat sebum.
| Peak no. | Retention time (min) | Identity* | Trivial name | Lipid Nomenclature |
|---|---|---|---|---|
| 1 | 5.04 | hexanal | caproaldehyde | |
| 2 | 5.39 | hexanoic acid | caproic acid | 6:0 |
| 3 | 6.41 | heptanal | ||
| 4 | 7.45 | octanal | caprylaldehyde | |
| 5 | 8.31 | nonanal | ||
| 6 | 7.67 | octanoic acid | caprylic acid | 8:0 |
| 7 | 8.50 | nonanoic acid (internal standard #1) | pelargonic acid | 9:0 |
| 8 | 9.05 | decanal | ||
| 9 | 9.23 | decanoic acid | capric acid | 10:0 |
| 10 | 10.50 | dodecanoic acid | lauric acid | 12:0 |
| 11 | 11.09 | tridecanoic acid | tridecylic acid | 13:0 |
| 12 | 11.15 | 2,6-di-tert-butyl-4-methylphenol | butylated hydroxy toluene | BHT |
| 13 | 11.62 | tetradecanoic acid | myristic acid | 14:0 |
| 14 | 11.89 | 12-methyltetradecanoic acid | ||
| 15 | 11.98 | 13-methyltetradecanoic acid | ||
| 16 | 12.14 | pentadecanoic acid | pentadecylic acid | 15:0 |
| 17 | 12.42 | 14-methylpentadecanoic acid | ||
| 18 | 12.70 | hexadecanoic acid | palmitic acid | 16:0 |
| 19 | 12.87 | (9Z)-hexadecenoic acid | palmitoleic acid | (9Z) 16:1 |
| 20 | 13.33 | heptadecanoic acid | margaric acid | 17:0 |
| 21 | 13.55 | (10Z)-heptadecenoic acid | (10Z) 17:1 | |
| 22 | 13.80 | [2H35]octadecanoic acid (internal standard #2) | perdeuterostearic acid | d35−18:0 |
| 23 | 14.11 | octadecanoic acid | stearic acid | 18:0 |
| 24 | 14.32 | (9Z)-octadecenoic acid | (9Z) 18:1 | |
| 25 | 14.77 | (9Z,12Z)-octadecadienoic acid | linoleic acid | (9Z,12Z) 18:2 |
| 26 | 15.08 | nonadecanoic acid | nonadecylic acid | 19:0 |
| 27 | 16.31 | eicosanoic acid | arachidic acid | 20:0 |
| 28 | 16.40 | 2-hydroxyhexadecanoic acid | 2-hydroxypalmitic acid | |
| 29 | 16.63 | (11Z)-eicosenoic acid | (11Z) 20:1 | |
| 30 | 17.91 | heneicosanoic acid | heneicosylic acid | 21:0 |
| 31 | 19.98 | docosanoic acid | behenic acid | 22:0 |
| 32 | 20.50 | (13Z)-docosenoic acid | erucic acid | (13Z) 22:1 |
| 33 | 22.71 | tricosanoic acid | tricosylic acid | 23:0 |
| 34 | 26.37 | tetracosanoic acid | lignoceric acid | 24:0 |
| 35 | 27.28 | (15Z)-tetracosenoic acid | nervonic acid | (15Z) 24:1 |
| 36 | 31.00 | pentacosanoic acid | pentacosylic acid | 25:0 |
| 37 | 35.62 | hexacosanoic acid | cerotic acid | 26:0 |
| 38 | 49.33 | cholest-5-en-3β-ol | cholesterol |
*
Fatty acids detected as their methyl esters and aldehydes as their dimethyl acetals.