Flurenol-methyl ester, 100 µg/ml, Ethyl acetate,

ISO 9377-2MOD Extraction Solvent Stock Solution I 20ul of n-Heptane and 20mg of n-Tetracontane solved in 1000ml n-Pentane

Ethylene glycol, 1000µg/ml in Water, 1ml

4-Hydroxy-2',3',4',5'-tetrachlorobiphenyl, 10mg