2,4-D, 100µg/ml in Acetonitrile, 5ml

Clothianidin, 1000µg/ml in MeOH, 1ml

Benzo[ghi]perylene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 93951-66-7

Cephalosporins