Mercuric Chloride Fixatives

Zenker’s fluid

mercuric acid + glacial acetic acid

Zenker’s fluid

for fixing small pieces of sliver, spleen, connective tissue fibers and nuclei

Zenker-formol / Helly’s solution

mercuric chloride + 40% formaldehyde

Zenker-formol / Helly’s solution

for pituitary gland, bone marrow, and blood-containing organs (liver and spleen)

Zenker-formol / Helly’s solution

better nuclear fixation and staining than Zenker’s

better cytoplasmic preservation than Zenker’s

Heidenhain’s Susa solution

for tumor biopsies

an excellent cytologic fixative

Schaudinn’s solution / Sublimated alcohol

wet smears for cytologic examinations

B-5 fixative

for bone marrow biopsies