2,3,5-Trichlorophenol, 100 µg/ml, Methanol, 1ml

Retene, 50mg

Chloroacetic Acid, 100 µg/ml, Acetonitrile, 1ml

C20Triaromatic sterane/C26Triaromatic sterane C20 Triaromatic sterane (0857,20)/ C26 Triaromatic sterane (0854,26) = 1:3 (0,33) 50 + 150 µg/mL in isooctane, 1mL pr. vial