The presence of polymerized glutaraldehyde greatly reduces its efficiency as a cross-linking agent, preventing proper fixation. We offer our glutaraldehyde in a wide range of percentages to simplify mixing procedures and avoiding waste.ĮM grade aqueous glutaraldehyde, stored in volumes greater than 100 ml, with repeated defrosting and recapping, will polymerize in time, producing an absorption peak of 235nm rather than the 280nm of pure EM grade. We package our aqueous glutaraldehyde in 10 ml, single dose ampoules, sealed under dry nitrogen, and kept refrigerated until it is shipped. If stored properly, our Glutaraldehyde has a very long shelf life. Electron Microscopy Sciences takes special precautions to assure a polymer-free, pure glutaraldehyde.Įvery lot of our EM grade aqueous glutaraldehyde is assayed prior to shipping assuring you consistent purity and the highest possible quality.
Purified to EM Grade from commercial grade by 'all-glass vacuum-distillation.'.The Universal Fixative for Electron Microscopy.Specific Gravity 1.131 EM Grade Distillation Purified Certificates of Analysis Glutaraldehyde – The Highest Purity Glutaraldehyde
