WS Trace Elements #2 Back Catalog number: 55013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 685017 Nitroguanidine, 100 µg/ml, Acetonitrile, 1ml Price on request 8243.11-100-T 2-Methyl-1-nitronaphthalene-d9, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request LA18000195IO Pesticide-Mix 195, in Isooctane, 1ml Price on request