PSA-GCB-Mix 14

CWA Silica as SiO2

epsilon-HCH (BHC), 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 6108-10-7

2,3',4',5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,