17ß(H),21ß(H)-Hopane, 100µg/min Isooctane, 1ml

4-Isopentylphenol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1805-61-4

Toxaphene, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 8001-35-2

1,413 µS/cm conductivity solution (230mL)