EPA Method 551.1 Internal Standard

Sebuthylazin-desethyl, 100 µg/ml, Acetonitrile,

alpha alpha alpha (20R 24R)-24-Methylcholestane and alpha alpha alpha (24R 24R)-24-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 50897-35-3/62446-14-4

2,2',4,4',6,6'-Hexabromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 59261-08-4