D5-Ochratoxin A, 10.0 µg/ml, Acetonitrile, 1ml

5-Hydroxymethyl-2-furfural, certified, 0.1g

Para-phenylenediamine,neat,neat,100mg,

Perfluoro-n-hexadecanoic acid, 50µg/ml in MeOH, 1,2ml