EPA Method 8270C - B/N Matrix Spiking Solution

O,O-Diethyldithiophosphate-13C4, sodium salt

9-Isopropylcarbazole, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1484-09-9

oxy-Chlordane, 10.0 µg/ml, Cyclohexane, 10ml