30:1
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The typical ratio for fixative volume to tissue is 10:1, meaning 10 times the volume of fixative compared to the volume of the tissue. This ensures proper fixation and preservation of the tissue structure for further analysis. Adjustments to this ratio may be needed depending on the tissue size and fixative used.
Carnoy's solution is a fixative creating covalent chemical bonds between proteins in tissue. Most commonly used fixative in histology is formaldehyde. It prevents decay.
Unfixed tissue refers to biological samples that have not been treated with a fixative to preserve their cellular structure. Unfixed tissue is more prone to degradation and changes over time compared to fixed tissue. It is typically used for special analyses or research purposes that require fresh tissue samples.
Void ratio (e) is typically defined as the ratio of the volume of voids to the volume of solids in a soil sample. The formula for void ratio is e = Vv/Vs, where Vv is the volume of voids and Vs is the volume of solids in the soil sample.
No, changing the volume of a substance does not alter its mass to volume ratio. The mass to volume ratio, also known as density, remains constant regardless of the volume of the substance. Density is a physical property that is intrinsic to the material and is not affected by changes in volume.
This is the ratio volume/time.