EPA method 200.8 internal standard

10-Hydroxycodeine (7,8-Didehydro-4,5a-epoxy-3-methoxy-17-methylmorphinan-6a,10-diol), neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 1777-89-5

Azoxystrobin, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 131860-33-8

2,4-Di-tert-butylphenol, 100 µg/ml, Methanol, 1m