Trichrome, Gomori One-Step, Aniline Blue Stain Kit

Histological Stain Kit Trichrome, Gomori One-Step, Aniline Blue

Uses a one-step solution combining a plasma stain and a connective tissue stain to differentially demonstrate collagen and muscle fibers.

Product Options:

Part # 9176B 250 ml kit $152.10 H
Part # 9176A 500 ml kit $231.00 H

TRICHROME, GOMORI ONE-STEP, ANILINE BLUE STAIN KIT INCLUDES:

Part 9176B Part 9176A
Solution A: Bouin Fluid 250 ml 500 ml
Solution B: Ferric Chloride, Acidified 125 ml 250 ml
Solution C: Hematoxylin 1%, Alcoholic 125 ml 250 ml
Solution D: Trichrome Stain, Gomori One-Step, Aniline Blue 250 ml 500 ml
Solution E: Acetic Acid 0.5%, Aqueous 250 ml 500 ml

 

COMPLIMENTARY POSITIVE CONTROL SLIDES: Enclosed are two complimentary unstained positive control slides for the initial verification of staining techniques and reagents.  Verification must be documented by running one Newcomer Supply complimentary positive control slide along with your current positive control slide for the first run. Retain the second complimentary control slide for further troubleshooting, if needed.

Individual stain solutions and additional control slides may be available for purchase under separate part numbers.

Additionally Needed:

Xylene, ACS Part 1445
Alcohol, Ethyl Denatured, 100% Part 10841
Alcohol, Ethyl Denatured, 95% Part 10842
Coplin Jar, Plastic Part 5184 (for microwave modification)

 

For storage requirements and expiration date refer to individual product labels.

 

APPLICATION:

Newcomer Supply Trichrome, Gomori One-Step, Aniline Blue Stain Kit procedure, with included microwave modification, uses a one-step solution combining a plasma stain and a connective tissue stain to differentially demonstrate collagen and muscle fibers.

 

METHOD:

Fixation: Formalin 10%, Phosphate Buffered (Part 1090)
Technique:  Paraffin sections cut at 4 microns

        1. See Procedure Note #1.

Solutions:  All solutions manufactured by Newcomer Supply, Inc.

All Newcomer Supply Stain Kits are designed to be used with Coplin jars filled to 40 ml following the staining procedure provided below.  Some solutions in the kit may contain extra volumes.

 

PRESTAINING PREPARATION:

    1. If necessary, heat dry tissue sections/slides in oven.
    2. Preheat Solution A: Bouin Fluid to 56-60°C in oven or water bath. (Skip if using overnight method or microwave procedure.)

 

STAINING PROCEDURE:

    1. Deparaffinize sections thoroughly in three changes of xylene, 3 minutes each. Hydrate through two changes each of 100% and 95% ethyl alcohols, 10 dips each.  Wash well with distilled water.
        1. See Procedure Notes #2 and #3.
    2. Mordant in preheated Solution A: Bouin Fluid (Step #2) for one hour at 56-60°C or overnight at room temperature. Cool at room temperature for 5-10 minutes.
        1. Skip Step #4 if tissue was originally Bouin fixed.

Microwave Modification:  See Procedure Note #4.

        1. Place slides in a plastic Coplin jar containing Solution A: Bouin Fluid and microwave for 5 minutes at 60°C.  Allow slides to sit an additional 10 minutes in solution.
    1. Wash well in running tap water; rinse in distilled water.
    2. Prepare fresh Weigert Iron Hematoxylin; combine and mix well.
        1. Solution B: Ferric Chloride, Acidified 20 ml
        2. Solution C: Hematoxylin 1%, Alcoholic         20 ml
    1. Stain in fresh Weigert Iron Hematoxylin for 10 minutes.
    2. Wash in running tap water for 10 minutes; rinse in distilled water.
        1. See Procedure Note #5.
    3. Stain with Solution D: Trichrome Stain, Gomori One-Step, Aniline Blue for 20 minutes.
    4. Differentiate in Solution E: Acetic Acid 0.5%, Aqueous; 2 minutes.
    5. Rinse quickly in distilled water.
    6. Dehydrate in two changes each of 95% and 100% ethyl alcohol. Clear in three changes of xylene, 10 dips each; coverslip with compatible mounting medium.

 

RESULTS:

Collagen and mucin Blue
Muscle fibers, cytoplasm and keratin Red
Nuclei Blue/black

 

PROCEDURE NOTES:

    1. Using ammonium hydroxide to soak/face tissue blocks will alter the pH of tissue sections and diminish trichrome staining.
    2. Drain slides after each step to prevent solution carry over.
    3. Do not allow sections to dry out at any point during procedure.
    4. The suggested microwave procedure has been tested at Newcomer Supply. This procedure is a guideline and techniques should be developed for use in your laboratory.
    5. If Weigert Iron Hematoxylin is not completely washed from tissue sections, nuclear and cytoplasmic staining may be compromised.
    6. If using a xylene substitute, closely follow the manufacturer’s recommendations for deparaffinization and clearing steps.

 

REFERENCES:

    1. Brown, Richard. Histologic Preparations: Common Problems and Their Solutions. Northfield, Ill.: College of American Pathologists, 2009. 95-101.
    2. Carson, Freida L., and Christa Hladik. Histotechnology: A Self-Instructional Text. 3rd ed. Chicago, Ill.: American Society of Clinical Pathologists, 2009. 165-166.
    3. Sheehan, Dezna C., and Barbara B. Hrapchak. Theory and Practice of Histotechnology. 2nd ed. St. Louis: Mosby, 1980. 191-192.
    4. Vacca, Linda L. Laboratory Manual of Histochemistry. New York: Raven Press, 1985. 308-310.
    5. Modifications developed by Newcomer Supply Laboratory.