Tetrachloro-m-xylene, 1000μg/ml in MeOH, 1ml

Levoglucosan, 1000µg/mL, Solvent-Tetrahydrofuran, Unit 1mL, # of units-1, Cas.no. 498-07-7

Kojic acid, 100µg/mL, Solvent-dried down, Unit 1mL, # of units-1, Cas.no. 501-30-4

Check Mix, EPA 610 8 Analytes, each concentration as listed in acetonitrile; units: 1x1mL, 5x1mL 0711.10 Naphthalene [91-20-3] 100 µg/mL 0002.12 Acenaphthylene [208-96-8] 100 µg/mL 0732.12 Acenaphthene [83