The invention discloses stationary liquid for preserving
pathological tissues. The stationary liquid is prepared from, by weight, formalin, Na<2>HPO<4>.12H<2>O, NH<2>PO<4>.2H<2>O,
sodium chloride,
acetic acid and ethyl
alcohol; the mentioned constituents are mixed into a solution to serve as the stationary liquid for preserving a product, and a collected
pathological specimen and the stationary liquid are both contained in a container, so that the
pathological specimen can be preserved and fixed. By means of the stationary liquid, pathological
tissue preservation and fixation can be achieved by one step, the preservation and fixation effect of the pathological tissues is remarkably improved, influence on active substances is reduced, the problem that the medical worker needs to compound stationary liquid temporarily is solved, convenience and rapidness are achieved, compounding is not required, and the stationary liquid can be used just after the container is opened; when the stationary liquid is used for preserving the pathological tissues, the specimen with the fresh tissues, in particular to specimen tissues rich in fibers, can be expanded and fix
chromatin rapidly, biological
enzyme is not closed, and fixation for section
staining is facilitated; the neutral environment of
body fluid is simulated, the pathological tissues which are preserved for a long time remain fresh, and the color is not changed. Preservation and fixation of the pathological tissues can be more stable, and it is helpful to improve the pathological section detection effect.