2-Nitrotoluene, 100 µg/ml, Methanol, 5ml

n-Butyltri-n-pentyltin,1000 µg/mL,isooctane,1mL,

Acetochlor, 1000µg/ml in MeOH, 1ml

2-n-Nonylphenol-mono-ethoxylate, 100 µg/ml, Aceto