Di-n-octyltin oxide,1000 µg/mL ,MeOH,1mL,

Penthiopyrad, 100µg/ml in Acetonitrile, 1ml

2,4’-Methoxychlor

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