Mepiquat chloride, 100 µg/ml, Water, 1ml

2-Perfluorooctyl (13C2)ethanoic acid (13C2-8:2 FTCA), 50µg/ml in Isopropanol, 1,2ml

Dieldrin-13C12,100 µg/mL,n-nonane,1mL

Bifenox, 1000µg/ml in MeOH, 1ml