Metolachlor (ring-13C6), 100µg/ml in n-Nonane, 1,2ml

Benzo[a]fluoranthene,200 µg/mL,acetonitrile,1mL,

Metoprolol, 1000µg/ml in MeOH, 1ml

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