EmbryoFix™ is a ready-to-use fixative especially suitable for the fixation of embryonic tissues. This solution, consisting of phosphate-buffered paraformaldehyde and picric acid, is prepared mainly according to Zamboni and de Martino¹. The fixative is packaged in polyethylene vials of convenient tissue-sample size (20 ml) with leak-proof caps.
Reference: Zamboni L. and de Martino C. (1967) J. Cell Biol. 35:148.