Pesticides Calibration GC-MS/MS Back Catalog number: 98681 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59337 pH 9.0 Standard @ 25°C Price on request MBP-52 2,2',5,5'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 97742 EPA Method 8270 PAH Standard Price on request