8260Matrix Spike Back Catalog number: 97031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 23004 EPA Method 8260B Surrogate Standard Price on request MBP-101 2,2',4,5,5'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request ACQ-WH05-015 Ethanol standard in whole blood,0.5g/L,whole blood, 1.5mL Price on request