Pendimethalin-D5, 100 µg/mL in Acetone, 1ml

2H,2H,3H,3H-Perfluorohexanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 356-02-5

Retene, 500µg/mL in Isooctane, 1ml

2-Nitrobenzaldehyde semicarbazone, 25mg