Method 200.8/1638/1640 Internal Standard Back Catalog number: 53145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10635.12-50-NN 1,2,3,7,8,9-Hexachlorodibenzofuran ,50 µg/mL,n-nonane,1mL, Price on request 681252 Cyclaniliprole, 100 µg/ml, Acetonitrile, 1ml Price on request 59456 ICP-MS INF2 Calibration Metals Mix 3 Price on request