Metronidazole, 100 µg/ml, Acetonitrile, 1ml

2,4-D,1000 µg/mL,MeOH,1mL,

ISO 9377-2MOD Extraction Solvent Stock Solution I 20ul of n-Heptane and 20mg of n-Tetracontane solved in 1000ml n-Pentane

Corticosterone, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 50-22-6