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  • Blue Loading Buffer Pack


    Blue Loading Buffer Reagents for SDS-PAGE:

    3X SDS Blue Loading Buffer (8 ml):
    187.5 mM Tris-HCl (pH 6.8 @ 25°C)
    6% (w/v) SDS
    30% glycerol and 0.03% (w/v) bromophenol blue
    (Store at room temperature)

    30X Reducing Agent (1 ml):
    1.25 M DTT
    (Store at -20°C)

    Properties and Usage

    Storage Temperature



    1. Reagents stored at different temperatures.
    2. Prepare fresh 3X Reducing Blue Loading Buffer by adding 1/10 volume 30X Reducing Agent to 1 volume of 3X Blue Loading Buffer.
    3. Prepare samples by adding 2 volumes of Sample to 1 volume 3X Reducing Blue Loading Buffer (from step 1).
    4. Heat samples to 95-100°C for 3-5 minutes.
    5. After a quick microcentrifuge spin, load directly on to a gel. To ensure uniform mobiity, load an equal volume of 1X Reducing Blue Loading Buffer into any unused wells.

    Supporting Documents

    Material Safety Datasheets

    The following is a list of Material Safety Data Sheets (MSDS) that apply to this product to help you use it safely. The following file naming structure is used to name these document files: [Product Name] MSDS. For international versions please contact us at info@neb.com.


    The Product Summary Sheet, or Data Card, includes details for how to use the product, as well as details of its formulation and quality controls. The following file naming structure is used to name the majority of these document files: [Catalog Number]Datasheet-Lot[Lot Number]. For those product lots not listed below, please contact NEB at info@neb.com or fill out the Technical Support Form for appropriate document.
    1. What is supplied with the Blue Loading Buffer pack?
    2. What is the composition of the Blue Loading Buffer?
    3. How should the Blue Loading Buffer be used?
    4. What is the difference between the Red and Blue Loading Buffers?
    5. What are the functions of the buffer pack components?
    DTT will degrade at room temperature. Keep the two components separate at store at their proper temps.