Caffeine, 100µg/ml in MeOH, 1ml

n-Octacosane, ?13C: -29.85, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 630-02-4

EPA Method 502/524 Surrogate Standard #3, 2000µg/ml in MeOH, 1ml

EPA Method 508 Analyte Mix #2