Silicon standard

DL-3-Methylmethamphetamine hydrochloride, 1000µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

PCB congener calibration check

O-Desmethyl tramadol hydrochloride, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.