How to Prepare 4% Paraformaldehyde (PFA) in PBS

4% PFA in PBS fixative. Prepare in fume hood - toxic fumes

Components

ChemicalConcentration
Paraformaldehyde4% w/v
NaCl137 mM
Na2HPO410 mM
KH2PO41.8 mM

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10% Neutral Buffered Formalin

Standard tissue fixative for histology. Contains ~3.7% formaldehyde. Toxic - use fume hood