Spiking Standard #2 Back Catalog number: 50756 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95095 Use Part# 95882 Price on request 677595 4-tert-Octylphenol-mono-ethoxylate, 100 µg/ml, Ac Price on request 676329 3-Methoxy-DL-tyrosine, 10mg Price on request