Name a hematoxylin that is not an aluminum hematoxylin.

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Multiple Choice

Name a hematoxylin that is not an aluminum hematoxylin.

Explanation:
hematoxylin staining relies on a mordant to bind the dye to tissue. The mordant determines whether the stain is an aluminum (alum) hematoxylin or a metal more commonly iron-based. Weigert’s hematoxylin uses iron as the mordant, so it is not an aluminum hematoxylin. The other named stains—Gill’s, Mallory’s, and Delafield’s—are standard aluminum hematoxylin formulations, meaning they use aluminum compounds as the mordant. So the option that is not an aluminum hematoxylin is Weigert’s hematoxylin.

hematoxylin staining relies on a mordant to bind the dye to tissue. The mordant determines whether the stain is an aluminum (alum) hematoxylin or a metal more commonly iron-based. Weigert’s hematoxylin uses iron as the mordant, so it is not an aluminum hematoxylin. The other named stains—Gill’s, Mallory’s, and Delafield’s—are standard aluminum hematoxylin formulations, meaning they use aluminum compounds as the mordant. So the option that is not an aluminum hematoxylin is Weigert’s hematoxylin.

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