Calibration Standard Mix 4

alpha-HCH, 100 µg/ml, Methanol, 1ml

2,2',4,5,5'-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 37680-73-2

Fipronil-sulfide, 100 µg/ml, Acetonitrile, 5ml