EPA Method 551.1 Standard Back Catalog number: 94519 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MBP-104 2,2',4,6,6'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request NK-LCS-T Mass-Labelled PCDD/PCDF Solution Mixture, 1.2ml, nonane Price on request L470500 Losartan Potassium Salt, 98%, 50mg Price on request