Multi-Element Internal Standard / Back Catalog number: 53319 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9127.12-K-IO Tri-n-butyltin-d27 chloride, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1257647-76-9 Price on request 59398 Metals Mix #4 Price on request 12007.20-100-ME (+/-)-Metanephrine-d3 hydrochloride (N-methyl-d3),100 µg base/mL,MeOH,1mL, Price on request