Multi-Element Solution 1 Back Catalog number: 50644 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59939 Potassium (K) Price on request MALD (13C12)Aldrin, 1.2mL x 100ug/mL, nonane Price on request 9989.49-10-ME Microcystin LR, 10µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 101043-37-2 Price on request