Ethoprophos, 100 µg/ml, Acetonitrile, 1ml

1,2,3,4-Tetrachlorobenzene, 1000µg/mL in Isooctane, 1ml

p-Terphenyl-d14, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1718-51-0

4-Nonylphenol-di-ethoxylate, 10µg/ml in Acetone, 1ml