Imazethapyr, 100 µg/ml, Acetonitrile, 1ml

2,2',5,5'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Lindane (BHC gamma isomer), 250mg

n-Dotriacontane, ?13C: -28.34, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 544-85-4