Alachlor D13 (2,6-diethylphenyl D13), 10mg

Haloxyfop-2-ethoxyethyl, 100mg

2,3,3',4,5,5'-Hexachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene

N-ethylperfluoro-1-octanesulfonamide , 1.2ml x 50ug/ml, methanol