https://www.selleckchem.com/pr....oducts/n-nitroso-n-m
Modifications in Jaffe serum creatinine (sCr) assays question the suitability of the results for direct comparison. sCr in adult in-patients was routinely measured either by SRM 909-standardized/noncompensated (method A) or isotope dilution mass spectrometry traceable/compensated method (reference). We converted values by method A into values by the reference using a formula provided by the manufacturer [Beckman Coulter (BC)] and traditional equating methods. The BC-based conversion and linear equating resulted in underes