n-Butyraldehyde-DNPH

EPA Method 551.1 Internal Standard

Phosphorous Containing Pesticides 5 Analytes, each 5000 µg/mL in cyclohexane; units: 1x1, 1x2mL Prod.no. Compound CAS No. 2779,12 Diazinon [333-41-5] 2780,9 Ethion [563-12-2] 1396,10Malathion

BTEX + BaP S-4342-100-50-ME 6 Analytes, each 100µg/mL in methanol; units: 1x1mL, 1x50mL Chiron No. Compound CAS No. 1300.6 Benzene [71-43-2] 1264.7 Toluene [108-88-3] 1268.8 Ethylbenzene [100-41-4]