Gibberellic acid, 100 µg/ml, Acetonitrile, 5ml

Dazomet, 100 µg/ml, Ethyl acetate, 5ml

QualityCheck gasoline sample

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