For Your Information Wheaton Science Products offers a variety of staining dishes and Coplin jars for staining procedures used in the fields of pathology, microscopy, microbiology and hematology. Staining is a procedure used in the preparation of samples to be examined by microscopy that enhances the contrast. In light microscopy, the specimens are colored using various dyes, many of which are selective in that they stain a specific type of tissue. Several stains may be used in sequence to produce a counterstained sample. Stains are classified as acidic, basic or neutral, depending on the nature of the colored radicals of the stain.
Acidic stains tend to react with cytoplasm, whereas basic stains are taken up by nucleic acids.
Aniline Blue is a water-soluble dye, acidic, used to stain connective tissue. Valuable for the accurate visualization of connective tissue fibers beneath epithelia within glands and muscles. Aniline blue colors collagen fiber dark blue, mucous and cartilage matrix a light blue, and nerve tissue lilac. Can be used as a counterstain with red nuclear dye. Dishes, covers and racks manufactured from soda-lime glass and resist stains from Eosin or Hemotoxylin.