QC Standard 1

1,2-Dimethylnaphthalene, certified, 50mg

alpha alpha alpha (20R)-Cholestane, 1000µg/mL in Isooctane, 1ml

Metazachlor, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 67129-08-2