EPA Method 507 Analyte Mix #10 Back Catalog number: 91424 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4502-60K-25IO Phosphorous Standards Phosphorus in Isooctane Tri-n-butylphosphate, 99+% (Chiron product nr. 1399.19) CAS [126-73-8] Matrix: Isooctane , 20cSt Units: 1x25mL, 1x100mL Isooctane Price on request 673133 2,4-D, 250mg Price on request 682123 PCB 138, 10.0 µg/ml, Isooctane, 10ml Price on request