Metals Mix #1 Back Catalog number: 50688 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EC-4976-2 Method 1668A/B Calibration Solution [CS2], 5ng/ml in Nonane, 0,2ml Price on request 672969 Polymyxin B sulfate, 100mg Price on request 10890.12-100-T 3-Nitrobiphenyl,100 µg/mL,toluene,1mL, Price on request