Iprobenfos, 100 µg/ml, Acetonitrile, 5ml

3ß(H),17ß(H),21ß(H)-3-Hydroxyhopane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

N-ethylperfluoro-1-octanesulfonamidoacetic acid, 50µg/ml in MeOH, 1ml

2,3,3',4,4',5,5'-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane