Quinmerac, 100 µg/ml, Acetonitrile, 5ml

Methyl-4-hydroxybenzoate, 1000µg/ml in MeOH, 1ml

Tolchlophos-methyl,100 µg/mL,MeOH,1mL,

Nitrite (NO2-) as N, 100µg/ml in Water, 100ml