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96%powder Paraformaldehyde is a variety of tissue cells is a good fixative, the preservation of lipids and enzymes are better than other fixatives, acetone on the preservation of polysaccharides and proteins also has a good effect, and the spontaneous fluorescence of paraformaldehyde is very weak, has no effect on the experimental results, is a good fixative for immunofluorescence.

96%powder Paraformaldehyde96%powder Paraformaldehyde does not affect the observation of fluorescence expression, but attention must be paid to avoiding light during the fixation of polyformaldehyde and the subsequent immunofluorescence staining. At the same time, attention should be paid to the excitation light wavelength and emission light wavelength not too close to the green fluorescent protein in the selection of fluorescent dyes.