Total Kjeldahl Nitrogen as (N)

Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K

Paxilline, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 57186-25-1

Heptachlor endo-epoxide, 100 µg/ml, Ethyl acetate