2,4-DB-methyl ester, 100 µg/ml, Ethyl acetate, 5

Guanylurea, 1000µg/ml in Water, 1ml

2,5-Dimethylbenzaldehyde-DNPH, 100µg/ml in AcN, 1ml

Fenthion-sulfone, 100µg/mL in Ethylacetate, 1ml