All studies represented by the chromatogram below have been conducted utilizing Vacuum Assisted Sorbent Extraction & Headspace Sorbent PensTM

The most versatile extraction and sample preconcentration technology available for GC and GCMS systems. Sorbent PensTM combine the features of SPME and classical ¼” adsorbent traps in a design with far more flexibility and enhanced performance. The Sorbent PenTM uses an entirely new approach for sample extraction.

Dark Chocolate analysis by VASE & Headspace Sorbent Pens


Instrument: 5800 HSP
Run date: November 17, 2016
Sample description: Dark Chocolate
Amount of Sample (g): 1
Sample conditions: 40 mL vial with 15 hours equilibration at 25°C
Desorb conditions: 260°C for 5 min.
Split Mode: Splitless
Precolumn: DB1 5m length x 0.25mm ID, 0.25µm film
Column: DB1 30m length x 0.25mm ID, 0.5µm film
Carrier: He, 1.5cc/min. constant flow
Oven Temp: 40°C hold 5 min., 10°C/min. to 325°C, 325 hold 5 min. (solvent delay at 6 min.)
GCMS: Agilent 7890B/5977A
MS Operation: 34-450 amu, 1.8 scans/sec
Pen ID: 411-0000004

1. Propanoic acid, 2-methyl
2. Butanoic acid, 3-methyl
3. Butanoic acid, 2-methyl
4. Heptana
5. Pyrazine, 2,5-dimethyl
6. Benzaldehyde
7. Pentanoic acid, 4-methyl
8. Hexanoic acid
9. Pyrazine, trimethyl
10. Propanoic acid, 2-hydroxy-, butyl ester
11. D-Limonene
12. Ethanone, 1-(1H-pyrrol-2-yl)-
13. Acetophenone
14. Pyrazine, 3-ethyl-2,5-dimethyl
15. Pyrazine, tetramethyl-
16. 2-Nonanone
17. Nonanal
18. 1,6-Octadien-3-ol, 3,7-dimethyl
19. Octanoic acid, ethyl ester
20. Benzeneacetic acid, ethyl ester

21. Acetic acid, 2-phenylethyl ester
22. Benzeneacetaldehyde, .alpha.-ethylidene
23. Vanillin
24. Benzoic acid, pent-2-yl ester
25. Tetradecane
26. 5-Methyl-2-phenyl-2-hexenal
27. Pentadecane
28. Butylated Hydroxytoluene
29. 1H-2-Benzopyran-1-one, 3,4-dihydro-8-hydroxy-3-methyl
30. Dodecanoic acid, ethyl ester
31. Benzophenone
32. Tetradecanoic acid, ethyl ester
33. Caffeine
34. 2-Heptadecanone
35. Hexadecanoic acid, methyl ester
36. Di-sec-butyl phthalate
37. 9-Octadecenoic acid, methyl ester
38. Linoleic acid ethyl ester
39. 9-Octadecenoic acid, (E)-
40. Octadecanoic acid, ethyl ester