Monuron, 10.0 µg/ml, Acetonitrile, 10ml

1,2,7,9-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

Diphenyltolyl phosphate - purified techn. mixture of o-, m-, p-tolyl isomers,50 µg/mL,toluene,1mL,

Iohexol, 100µg/ml in MeOH, 1ml