Mass-Labelled PCB Extraction Standards, 1.2ml, nonane Back Catalog number: PCB-LCS-H Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended DF-267-S 2,6,7-Trichlorodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request S-4502-5K-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 19598 EPA Method 602 Purgeable Aromatics Price on request