For in vitro diagnostic use. Others Gram Staining Kit IVD Gram Staining Kit RTD000933 860-039 Gram Staining Kit 04015630984688 75 tests true GRAM STAINING KIT 06890105001 Not Available Reagents, kits en Gram Staining Kit is intended for use as a qualitative histologic stain to demonstrate gram-negative and gram-positive bacteria in formalin-fixed, paraffin-embedded tissue.This product should be interpreted by a qualified pathologist in conjunction with histological examination, relevant clinical information, and proper controls.This product is intended for in vitro diagnostic (IVD) use. en This kit is optimized for use on the VENTANA BenchMark Special Stains automated slide stainer. The reagents are applied to tissue on microscope slides and mixed over the entire specimen. The staining reaction for Gram Staining Kit is based on the formation of a dye lake (crystal violet-iodine complex) that penetrates the bacteria cell walls. The microscope slide is differentiated with SSR Solution, which removes the dye from some tissue elements but not from the gram-positive bacteria. Following the differentiation step, the tissue is stained with basic fuchsin and Gallego solution. The tissue can be counterstained with tartrazine or fast green, or no counterstain can be selected.