Metribuzin, 100 µg/ml, Acetonitrile, 5ml

Thiophene/2-Methylthiophene (2:1) in isooctane/Toluene(3:1); Units: 5x1mL ampoules, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4056-0 Blank 0 S-4056-5 5

Hexyl 2-ethylhexyl phthalate (isomer mixture), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 75673-16-4 (CAS of single isomer)

Endosulfan-sulfate, 100 µg/ml, Ethyl acetate, 5m