Avermectin B1a, 100 µg/ml, Acetonitrile, 1ml

N-Nitrosoethylmethylamine, 100 µg/ml, Methanol,

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

Tribromoacetic acid, 100µg/ml in Water, 1ml