Spiking Standard #2 Back Catalog number: 52070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11279.20-100-AN (+/-)-Pyriproxyfen-d4 (pyridyl-d4),100 µg/mL,acetonitrile,1mL, Price on request 57058 Cerium (Ce) Price on request 95175 Fermentation Standard #1 Price on request