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  2. MOPS - Wikipedia

    en.wikipedia.org/wiki/MOPS

    MOPS (3-(N-morpholino)propanesulfonic acid) is a buffer introduced in the 1960s, one of the twenty Good's buffers.It is a structural analog to MES, [1] and like MES, its structure contains a morpholine ring.

  3. Total ionic strength adjustment buffer - Wikipedia

    en.wikipedia.org/wiki/Total_ionic_strength...

    Total ionic strength adjustment buffer (TISAB) is a buffer solution which increases the ionic strength of a solution to a relatively high level. This is important for potentiometric measurements, including ion selective electrodes, because they measure the activity of the analyte rather than its concentration.

  4. Buffer solution - Wikipedia

    en.wikipedia.org/wiki/Buffer_solution

    A buffer solution is a solution where the pH does not change significantly on dilution or if an acid or base is added at constant temperature. [1] Its pH changes very little when a small amount of strong acid or base is added to it. Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical ...

  5. Sigma-Aldrich - Wikipedia

    en.wikipedia.org/wiki/Sigma-Aldrich

    Sigma-Aldrich (formally MilliporeSigma) [5] [6] is an American chemical, life science, and biotechnology company owned by the multinational chemical conglomerate Merck Group Sigma-Aldrich was created in 1975 by the merger of Sigma Chemical Company and Aldrich Chemical Company.

  6. McIlvaine buffer - Wikipedia

    en.wikipedia.org/wiki/McIlvaine_buffer

    McIlvaine buffer is a buffer solution composed of citric acid and disodium hydrogen phosphate, also known as citrate-phosphate buffer.It was introduced in 1921 by the United States agronomist Theodore Clinton McIlvaine (1875–1959) from West Virginia University, and it can be prepared in pH 2.2 to 8 by mixing two stock solutions.

  7. Ellman's reagent - Wikipedia

    en.wikipedia.org/wiki/Ellman's_reagent

    This reaction is rapid and stoichiometric, with the addition of one mole of thiol releasing one mole of TNB. The TNB 2− is quantified in a spectrophotometer by measuring the absorbance of visible light at 412 nm, using an extinction coefficient of 14,150 M −1 cm −1 for dilute buffer solutions, [4] [5] and a coefficient of 13,700 M −1 cm −1 for high salt concentrations, such as 6 M ...

  8. Tetraoctylammonium bromide - Wikipedia

    en.wikipedia.org/wiki/Tetraoctylammonium_bromide

    It is generally used as a phase transfer catalyst between an aqueous solution and an organic solution. References This page was last edited on 12 April 2021, at ...

  9. Potassium bis(trimethylsilyl)amide - Wikipedia

    en.wikipedia.org/wiki/Potassium_bis...

    Solution structures are either solvated monomers or dimers (or mixtures thereof) with this depending on the coordinating power, concentration, and temperature of the solvent. [3] In general, weakly coordinating solvents such as toluene and N,N-dimethylethylamine give dimers, where as THF and diglyme gave monomers at high dilution. [ 3 ]