All studies done in the chromatogram below have been produced by the HS Sorbent PenTM

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 (Vacuum Assisted Sorbent Extraction) & Headspace Sorbent Pens


Instrument: 5800 HSP
Run date: November 17, 2016
Sample description: Dark Chocolate
Weight 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: 411-0000008

1. Propanoic acid, 2-methyl-
2. Butanoic acid, 3-methyl-
3. Butanoic acid, 2-methyl-
4. Heptanal
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