Alachlor D13 (2,6-diethylphenyl D13), 100 ng/µl, 1.1ml

Perfluoro-n-[1,2-13C2]undecanoic acid, 1.2ml x 50ug/ml, methanol

Carbaryl, 100 µg/ml, Ethyl acetate, 5ml

Paraoxon-methyl, 10 µg/ml, Acetonitrile, 10ml