1,4,6,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

Ochratoxin-alpha, 10µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 19165-63-0

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

Surrogate Standard