[Histonet] Leder's Method (re: Sodium barbiturate)

[Doug Geddes]

Question for my technical specialist. 

Leder's method for neutrophilic myeloid and tissue mast cells for
paraffin sections and blood films - Michaelis veronal acetate buffer
requires sodium barbiturate.

Sodium barbiturate can't be obtained in Canada or brought across the
boarder.

Any substitutions? Variations? Please help!

Doug Geddes BSc. MLT
London Health Sciences Centre
London, Ontario, Canada