Multi-Element Internal Standard / Back Catalog number: 53319 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MET-13104AM1-1ML Propachlor ESA sodium salt, 100µg/ml in MeOH, 1ml Price on request N525625 N-Nitrosodimethylamine, 1g Price on request 678424 delta-HCH, 100 µg/ml, Acetonitrile, 5ml Price on request