Iohexol, 100 µg/ml in Acetonitrile, 5ml

Mix 34, 10 µg/ml, Methanol, 10ml

1,2,3-Trichlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,

Phenol, 100 µg/ml, Methanol, 1ml