Internal standards are important for dependable analytical results. This is particularly true in LC/MS/MS analysis where lower detection limits and faster run times are always the goal. Because of varying injection volumes, ionization and retention times a true isotopically labeled internal standard allows for reliable data and to offset any instrument variation from sample to sample. IsoSciences has synthesized isotopically labeled internal standards for a wide variety of applications such as vitamins, steroids, metabolites and other molecules of chemical and biological interest.

IsoSciences provides a comprehensive Certificate of Analysis (COA) with every product. Each COA provides:

Analytical Method and Conditions 
HPLC, GC, MS, 1H-NMR and 13C-NMR Spectra (if applicable)
Acceptance Criteria and Batch Results
Chemical Purity
Isotope Incorporation
Concentration (if applicable)

Isosciences catalogue

Not all standards are currently available on the online store. Please contact us if you need a specific standards that is not currently available.


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