We don't let our unfixed sections air-dry (room temp) long before fixing them - a few minutes? For some people here I let them sit a few minutes then just store them in the -80 for up to a weeks weeks before they fix them and commence with their staining procedure. If the animals were perfusion-fixed maybe they can air-dry longer. I've heard everything from 5 min to overnight. At room temperature.

Just my input.

--On Tuesday, March 24, 2009 12:17 PM -0400 "Vanessa J. Phelan" <vjp2...@columbia.edu> wrote:

Hi everyone,

When carrying out IF on frozen sections how long after the cutting the
sections should you leave the slides to dry and where before starting the
staining procedure?

Thanks a mill,

V

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