Surrogate Standard Stock Solution, 1.2ml, nonane

2,5,8-Trimethyltetraline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 30316-17-7

4,6-Dimethylquinoline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 826-77-7

Theophylline