Peak #

-R congener

Retention  time  (min)

[M-H]^-

Present in

1

C₁₇ tetraene

15.09

339

Poison ivy

2

C₁₅ diene

16.14

315

Skin sample

3

C₁₇ triene

16.64

341

Poison ivy

4

C₁₅ monoene

17.66

317

Poison ivy and skin sample

5

C₁₇ diene

18.33

343

Poison ivy and skin sample

6

C₁₅ saturated

20.20

319

Poison ivy and skin sample

7

C₁₇ monoene

20.95

345

Poison ivy and skin sample