Method 200.8 Single Element Kit Back Catalog number: 52251 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 57112 Magnesium (Mg) Price on request 2193.8-50-ME Perfluorooctane sulfonic acid, potassium salt,50 µg/mL,MeOH,1mL, Price on request 3897.10-100-ME 2-Isobutylthiazole, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-, Cas.no. 18640-24-9 Price on request