Paraoxon-methyl, 100µg/ml in Acetonitrile, 5ml

Labelled Compound Stock Solution, in Nonane/3.2% toluene, 1,2ml

BTEX Mixture 5 5 Analytes, each 100µg/mL in methanol; unit: 1x5mL screw-cap Chiron No. Compound CAS No. 1300.6 Benzene [71-43-2] 1264.7 Toluene [108-88-3] 1268.8 Ethylbenzene [100-41-4] 1266.8

Internal standard 2, 2000g/ml in MeOH, 1ml