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

2-Methylnaphthalene, 10.0 µg/ml, Acetonitrile, 1

2H,2H,3H,3H-Perfluoroundecanoic acid, 50µg/mL in MeOH, 1ml

MCPA, 1000µg/ml in MTBE, 1ml