Vinclozolin, 100 µg/ml, Acetonitrile, 5ml

Simazine (ring-13C3), 100ug/ml in MeOH, 1,2ml

Acetic acid-13C2,2000 µg/mL,MeOH,1mL,

2,2',6,6'-Tetrabromodiphenyl ether, 1.2ml x 50ug/ml, nonane