EPA Method 200.8 Back Catalog number: 50769 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDD-123678 1,2,3,6,7,8-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Price on request 27013 EPA Method 8260B - Purgeable Internal Std Price on request SFA-006S Methyltridecanoate C13:0, 10mg/ml in Hexane, 1ml Price on request