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Add 2.84 mM of HCl to shift the buffer to 7.3 mM HPO 4 2− and 4.6 mM H 2 PO 4 − for a final pH of 7.4 and a Cl − concentration of 142 mM. The pH of PBS is ~7.4. When making buffer solutions, it is good practice to always measure the pH directly using a pH meter. If necessary, pH can be adjusted using hydrochloric acid or sodium hydroxide.
Buffer capacity falls to 33% of the maximum value at pH = pK a ± 1, to 10% at pH = pK a ± 1.5 and to 1% at pH = pK a ± 2. For this reason the most useful range is approximately pK a ± 1. When choosing a buffer for use at a specific pH, it should have a pK a value as close as possible to that pH. [2]
Part of the lysis buffer (usually in a 5% solution in alkaline lysis buffer) in DNA extraction; Reducing surface tension of aqueous solutions during immunostaining (usually at a concentration of 0.1-0.5% in TBS or PBS buffer) Dispersion of carbon materials for soft composite materials; Restricting colony expansion in Aspergillus nidulans in ...
RIPA buffer is a commonly used lysis buffer for immunoprecipitation and general protein extraction from cells and tissues. The buffer can be stored without vanadate at 4 °C for up to 1 year. [10] RIPA buffer releases proteins from cells as well as disrupts most weak interactions between proteins. [9] Recipe: [10] 1% (w/w) Nonidet P-40 (NP-40)
1 mM EDTA, bring to pH 8.0 with NaOH; TE buffer is also known as T 10 E 1 buffer, which can be read as "T ten E one buffer". To make a 100 ml solution of T 10 E 1 buffer, 1 ml of 1 M Tris base (pH 10–11) and 0.2 ml EDTA (0.5 M) are mixed and made up with double distilled water up to 100ml. Add microliter amounts of high molarity HCl to lower ...
Dulbecco's phosphate-buffered saline, a buffer solution used in biological research DPBS (CONFIG.SYS directive) , a configuration directive in DOS Topics referred to by the same term
They are formulated to give a ready to use borate buffered saline solution upon dissolution in 500 ml of deionized water. Concentration of borate and NaCl as well as the pH can vary, and the resulting solution would still be referred to as "borate buffered saline". Borate concentration (giving buffering capacity) can vary from 10 mM to 100 mM.
Tyrode's solution is a solution that is roughly isotonic with interstitial fluid and used in physiological experiments and tissue culture. It resembles lactated Ringer's solution, but contains magnesium, a sugar (usually glucose) as an energy source and uses bicarbonate and phosphate as a buffer instead of lactate.