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The Three-Step Stain Set is comprised of three components: a methanol fixative (Fixative), an aqueous eosin solution (Solution A), and an aqueous methylene blue/azure A solution (Solution B). The staining solutions consist of xanthene and thiazine dyes, exhibiting both anionic and cationic properties, respectively. Cationic cellular components, such as erythrocytes and eosinophilic granules, share an affinity for the anionic dye of Solution A. The negatively charged phosphate groups of DNA and basophilic granules of the cytoplasm have an affinity for the polychromatic cationic dyes of Solution B. The aqueous stain formulations function to dissociate and activate the dye ions, allowing them to chemically bond with specific cellular components. When staining blood and bone marrow smears, the pH of the staining solutions is a critical factor
RICHARD-ALLAN SCIENTIFIC COMPANY
Three-Step Stain Set
In Commercial Distribution
- 00673693069564 ()
3300
- Biological stain IVD
"Hematology stains are typically mixtures of several thiazin dyes in a methanol solvent. Ionic and non-ionic forces are involved in the binding of the dyes. The negatively charged phosphoric acid groups of DNA attract the purple polychromatic cationic dyes to the nuclei. The blue basophilic granules are stained by the polychromatic cationic dyes. Cationic cellular components, such as the erythrocytes and eosinophilic granules, are stained by the red and pink anionic dyes. The buffers used in the staining procedure liberate and activate dye ions allowing them to chemically bond with specific cellular components. When staining blood and bone marrow smears, the pH of the staining solution and/or buffer is a critical factor. The Wright, Wright-Giemsa, Giemsa, May-Grunwald and Jenner stains all rely on a separate buffer solution to control the pH of the reaction, whereas the buffered versions are referred to as “one-step” and have the buffering component already in the staining solution. There are pros and cons to each type of hematology stain although they all contain the thiazin dyes which control the coloration of the nuclear cell components. The single solutions with buffer included generally present more precipitate and the cellular detail is not defined as well as using separate stain and buffer solutions.
This kit contains three 500ml bottles of Wright Giemsa stain, pH 6.8 Buffer and a Rinse solution intended to be used as a system per the instructions for use."
RICHARD-ALLAN SCIENTIFIC COMPANY
Buffered Wright - Giemsa Stain
In Commercial Distribution
- 00673693068192 ()
3121
- Biological stain IVD
"Hematology stains are typically mixtures of several thiazin dyes in a methanol solvent. Ionic and non-ionic forces are involved in the binding of the dyes. The negatively charged phosphoric acid groups of DNA attract the purple polychromatic cationic dyes to the nuclei. The blue basophilic granules are stained by the polychromatic cationic dyes. Cationic cellular components, such as the erythrocytes and eosinophilic granules, are stained by the red and pink anionic dyes. The buffers used in the staining procedure liberate and activate dye ions allowing them to chemically bond with specific cellular components. When staining blood and bone marrow smears, the pH of the staining solution and/or buffer is a critical factor. The Wright, Wright-Giemsa, Giemsa, May-Grunwald and Jenner stains all rely on a separate buffer solution to control the pH of the reaction, whereas the buffered versions are referred to as “one-step” and have the buffering component already in the staining solution. There are pros and cons to each type of hematology stain although they all contain the thiazin dyes which control the coloration of the nuclear cell components. The single solutions with buffer included generally present more precipitate and the cellular detail is not defined as well as using separate stain and buffer solutions.
This kit contains three 500ml bottles of Wright Giemsa stain, pH 6.8 Buffer and a Rinse solution intended to be used as a system per the instructions for use."
RICHARD-ALLAN SCIENTIFIC COMPANY
Buffered Wright Stain
In Commercial Distribution
- 00673693068161 ()
3111
- Biological stain IVD
No Description
BREG, INC.
TOPSHELF WRAP SHDLR L/XL
In Commercial Distribution
- 00672736022177 ()
20.02655
- Circulating-fluid localized thermal therapy system pack, single-use
- Inflatable hot/cold therapy pack/electric pump
No Description
BREG, INC.
HEEL LIFT L
In Commercial Distribution
- 00672736021583 ()
11454
- Knee support orthosis
No Description
BREG, INC.
HEEL LIFT S
In Commercial Distribution
- 00672736021569 ()
11452
- Knee support orthosis
No Description
BREG, INC.
HEEL CUP SILICONE L
In Commercial Distribution
- 00672736013977 ()
11094
- Knee support orthosis
No Description
BREG, INC.
HEEL CUP SILICONE M
In Commercial Distribution
- 00672736013960 ()
11093
- Knee support orthosis
No Description
BREG, INC.
WRAP SHDLR L/XL
In Commercial Distribution
- 00672736001561 ()
02655
- Circulating-fluid localized thermal therapy system pack, single-use
- Inflatable hot/cold therapy pack/electric pump
358-222 Incognito Appliance System Lite 2 Phase Silicone Tray Each
3M UNITEK CORPORATION
DE150004484
In Commercial Distribution
- 00652221232717 ()
DE150004484
- Orthodontic archwire