EPA method 200.7 spiking no. 3

Bishomohopane, Isomer mix, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

DL-4-Methylamphetamine hydrochloride, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

Propyzamide, 100 µg/ml, Ethyl acetate, 5ml