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        High Resolution Agarose Gel Electrophoresis

        互联网

        986

        实验步骤

         

        Dissolving Agarose 1000 (<3%)

        NOTE: Chill Agarose 1000 gels for 30 minutes at 4°C before use to achieve best resolution.

        Method 1: Microwave (recommended for < 3% concentrations)

        1. Into a flask holding 2-4 times the desired solution volume, add a magnetic stir bar and the calculated volume of buffer at room temperature.
        2. Put the flask on a magnetic stirrer and slowly sprinkle the calculated amount of agarose powder into the flask while stirring constantly to prevent the formation of agarose clumps.
        3. Remove the stir bar
        4. Weigh the flask and solution before heating.
        5. Place in the microwave oven and heat on high power for two minutes.
        6. Remove carefully as any microwaved solution may become superheated and foam over when agitated. Gently swirl to resuspend any agarose particles.
        7. Reheat on high power using 15-20 second intervals or until the solution comes to a boil, and solution is complete.
        8. Remove carefully and gently swirl.
        9. Return the flask to its original weight by adding warm distilled water.
        10. Mix gently and cool to 50-60°C (at room temperature for at least 20 minutes) before pouring the solution into the tray.
        11. During the cooling time any air bubbles will disappear.

        Dissolving Agarose 1000 (4%-5%)

        Method 2: Boiling water bath (recommended for all concentrations, especially 4%-5%)

        1. Into a flask holding 2-4 times the desired solution volume, add a magnetic stir bar and the calculated volume of buffer at room temperature.
        2. Put the flask on a magnetic stirrer and slowly sprinkle the calculated amount of agarose powder while stirring constantly to prevent the formation of agarose clumps.
        3. Weigh the flask and solution before heating.

        Dissolving Agarose 1000 (>5%)

        Method 3: Autoclave (recommended for all concentrations, especially > 5%)

        1. Into a flask holding 2-4 times the desired solution volume, add a magnetic stir bar and calculated amount of buffer at room temperature.
        2. Put the flask on a magnetic stirrer and slowly sprinkle the calculated amount of agarose powder into the flask while stirring constantly to prevent the formation of agarose clumps.
        3. Heat two minutes in the microwave oven at medium power.
        4. Cover the opening of the flask with an aluminum foil to prevent spillover and autoclave at 121°C for 15 minutes.
        5. Remove from the autoclave and allow to cool to 50-60°C before pouring the solution into the tray.
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