2-Ethyltoluene, 200 µg/ml, Methanol, 1ml

2-Bromothiophene in isooctane, Blank Units: 5x1mL ampoules

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

Profenofos, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 41198-08-7