3-Hydroxynaphthalene-2,7-disulfonic acid disodium

Fenthion, 100 µg/ml, Acetonitrile, 5ml

2,2',3,5'-Tetrachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 41464-39-5

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