Precision and Recovery Solution, 1.2ml, isooctane

Phenols Mix #2

2,3',4,4',5,5'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-72-6

17ß-Estradiol, 50mg