Validation parameters calculated from a mixture of commercial standards. Compounds are ordered with respect to their increasing retention times.

Compound	R 2	Linear range [nmol L−1]	LODa [nmol L−1]	LOQb [nmol L−1]	Intraday precision [RSD%]	Interday precision [RSD%]
2,3-Butanedione	0.993	2671.6–170927.4	5.2	17.4	3.8	6.1
2-Butanone	0.995	3494.7–223270.0	0.21	0.71	3.3	6.8
Thiophene	0.973	487.3–31233.7	0.03	0.10	2.3	5.3
Dimethyl disulfide	0.992	435.3–27763.0	0.03	0.09	1.3	4.5
Hexanal	0.985	639.0–40684.9	0.04	0.13	2.0	3.5
4-Heptanone	0.970	280.2–17891.5	0.02	0.06	2.1	2.7
2-Heptanone	0.971	280.2–17952.9	0.02	0.06	1.9	2.4
2-Pentylfuran	0.964	2004.2–32052.7	15.7	52.17	4.6	4.7
Dimethyl trisulfide	0.950	744.6–11905.0	46.5	155.0	4.5	2.3
6-Methyl-5-hepten-2-one	0.979	7.92–340.73	0.17	0.55	2.0	4.6
Benzaldehyde	0.955	188.5–2949.4	0.09	0.30	3.8	2.4
Octanal	0.999	241.8–967.1	0.0005	0.0015	3.3	2.6
trans-3-Octen-2-one	0.952	23.8–0.340.7	2.7	8.8	2.9	1.9
p-Cresol	0.961	1239.1–19835.4	155.0	516.5	6.0	6.1
1,3-Di-tert-butylbenzene	0.979	0.28–2.3	0.14	0.47	8.0	16.0

^aLimit of detection.

^bLimit of quantification.