Alditol Acetate Mixture-2/ml, 1 ml in chloroform

All materials are analyzed to verify their identity and to determine their purity. All analytes are 98+% pure. This standard is accurately prepared by gravimetric technique (+/- 0.5%) and all glassware is class A rated. Ampules are purged with nitrogen/argon before and after filling and chilled before being flame sealed. Store ampules sealed as received and process without delay immediately after opening the ampule. Composition: Quantitative mixture,mannitol, galactitol, glucitol and inositol hexaacetates, 12.5 mg/ml each