Spiking Standard 3 Back Catalog number: 52072 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9491.12-100-IO Tri-n-butylphosphate-d27, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 61196-26-7 Price on request 50307 IC Anions Mix Price on request 12114.4-100-ME Metformin-d6 hydrochloride (dimethyl-d6),100 µg/mL,MeOH,1mL, Price on request