4-Ethylphenol, 100 µg/ml, Acetonitrile, 1ml

Metformin-d6-HCl, 100μg/ml in MeOH, 5ml

Dalapon methyl ester, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 17640-02-7

1,2,6,9-Tetramethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 204256-39-3