Spiking Standard #2

2-Isopropoxy-3(6)-methylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

4,4'-DDE, 100 µg/ml, Toluene, 5ml

2-Methylquinoxaline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.