Samiksha Jaiswal (Editor)

TBST

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In molecular biology, TBST (or TTBS) is mixture of tris-buffered saline (TBS) and Polysorbate 20 (also known as Tween 20). It is a buffer used for washing nitrocellulose membrane in western blotting and microtiter plate wells in ELISA assays.

Contents of TBS-Tween

The following is a sample recipe for TBST:

  • 50 mM Tris
  • 150 mM NaCl
  • 0.1% Tween 20
  • Adjust pH with HCl to pH 7.4 - 7.6

    The simplest way to prepare a TBS-Tween solution is to use TBS-T tablets. They are formulated to give a ready to use TBST solution upon dissolution in 500 ml of deionized water.

    References

    TBST Wikipedia


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