Harman-13C2,15N, 1mg

N-ethylperfluoro-1-octanesulfonamide, 50µg/ml in MeOH, 1,2ml

Diafenthiuron-urea, 10mg

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