Pesticides resolution check standard

Isoproturon, 10.0 µg/ml, Acetonitrile, 10ml

Ecgonine methyl ester HCl, 1000µg/ml in MeOH, 1ml

5-Methyl-furfural, 100µg/mL, Solvent-, Unit 1mL, # of units-1, Cas.no. 620-02-0