EPA Method 624 Internal / Surrogate Standard

4,6,8-Trimethylazulene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 941-81-1

Biphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 92-52-4

Flucythrinate, 100 ng/µl, 1ml