Ethyl acetate, 5ml

1,2,4,7-Tetrachloronaphthalene, 1.2mL x 50ug/mL, nonane

Penconazole, 10 µg/ml, Ethyl acetate, 10ml

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