Display specimen staining a structural component of hematoxylin-eosin staining (HE staining) for the most common staining. The method is applied to a variety of organizations staining, histological techniques is the basic method, and for any liquid fixed tissue sections and various embedded tissue sections can be used only for the treatment of different embedded slices slightly different. About paraffin-embedded sections of the following HE staining. 1, dewaxing: the internal organization of paraffin tissue sections filled with paraffin supplier, can not make the water-soluble dye coloring, so before staining paraffin with xylene must first take off, a total of twice. 2, downward into the water: The specimen has been immersed in ethanol dewaxing and slice serves alcohol at all levels, enabling organizations to gradually close the water. 3, slightly washed with distilled water. 4, hematoxylin staining solution for about 5-15 minutes 5, water to wash away the excess dye. 6, into the alcoholic solution of diluted hydrochloric acid separation, edge separation edge microscopy, reddish purple to nuclear, cytoplasmic colorless as appropriate. A display of nucleic acid green faction Well Ning (Methyl green-pyronln) staining: ⑴ Principle: A green and basic dyes are sent Ning Well, the two nucleic acids (DNA and RNA) can be dyed separately, the mechanism may be that the two nucleic acids molecules are polymers, but with varying degrees of polymerization. A green has two uncharged amino, and only one faction Well Ning. Therefore, in the mixed dye in Zhengzhou tissue sections, the result of competition between the two is the higher degree of polymerization A green easy and DNA-binding blue-green, but rather is associated with lower faction Well degree of polymerization of RNA binding is red. (Reagent preparation and histological methods are detailed technical monograph) ⑶ results: nuclear DNA was in the blue-green, nucleolar and cytoplasmic RNA was pink. Tissue sections offer voyage teaching (certified), tissue sections provided by Xinxiang City Teaching Equipment Co. voyage. Xinxiang City voyage Teaching Equipment Co. (www.xxyuanhang.cn) is an industry leader in Henan Xinxiang, specimen model years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. On the voyage instructional leadership with the staff warmly welcome all inquiries negotiations to create a better future teaching voyage.