Multi-Element Calibration Standard-4 Back Catalog number: 50013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MCDE-37 3,4,4'-Trichloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 53076 Secondary Drinking Water Metals Price on request 676975 D4-Ethylparaben, 100 µg/ml, Acetonitrile, 1ml Price on request