2,4,4’-Tribromodiphenyl ether, 50µg/ml in IO, 1ml

Molybdenum, 1000µg/ml in in 0.5%-NH4OH / H2O,100ml

Triazine Pesticides Mixture 926 100 µg/mL in Acetone,1ml

13C6-Sulfamethoxazole, 10mg