Table 2.

Limits of detection (LOD) for each compound in the test mixture calculated at the 90 % confidence level (LOD90), as well as the respective 90 % upper confidence limit (UCL) (n = 10). TMB = trimethylbenzene; TEMB = tetramethylbenzene.

Compound	LOD90 (ng/mL)	90 % UCL (ng/mL)
p-Xylene	27	33
n-Nonane	39	53
1,2,4-TMB	33	41
n-Decane	41	54
1,2,4,5-TEMB	36	45
Naphthalene	34	42
n-Tridecane	110	230