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formaldehyde fixative

 

Definition: a widely used fixing agent for pathologic histology; the commercial solution is 37–40% formaldehyde and is known as 100% formalin or formol; a common impurity is formic acid, which must be neutralized, or the fixative made in buffer solution; tissues fixed may have a pigment artifact precipitated.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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