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2. Bromothymol blue - Wikipedia

   en.wikipedia.org/wiki/Bromothymol_blue

   Bromothymol blue (also known as bromothymol sulfone phthalein and BTB) is a pH indicator. It is mostly used in applications that require measuring substances that ...

3. List of Canadian stores - Wikipedia

   en.wikipedia.org/wiki/List_of_Canadian_stores

   BP Canada — Convenience store; Bi-Way — discount clothing store chain; Blockbuster Video — Canadian unit of US-based video rental shop chain; The Book Room — At the time of its closing in 2008, it was the oldest bookstore in Canada. Bed Bath &- Beyond Canada — Bath & furniture store; Buy Buy Baby Canada — Baby store; Central ...

4. Universal indicator - Wikipedia

   en.wikipedia.org/wiki/Universal_indicator

   Solution: The main components of a universal indicator, in the form of a solution, are thymol blue, methyl red, bromothymol blue, and phenolphthalein. This mixture is important because each component loses or gains protons depending upon the acidity or alkalinity of the solution being tested. It is beneficial to use this type of universal ...

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   www.aol.com/shopping/stores/old-navy

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6. Bromophenol blue - Wikipedia

   en.wikipedia.org/wiki/Bromophenol_blue

   Bromophenol is also used as a colour marker to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis.Since bromophenol blue carries a slight negative charge at moderate pH, it will migrate in the same direction as DNA or protein in a gel; the rate at which it migrates varies according to gel density and buffer composition, but in a typical 1% agarose gel in ...

7. pH indicator - Wikipedia

   en.wikipedia.org/wiki/PH_indicator

   The observed spectrum (green) is the sum of the spectra of HA (gold) and of A − (blue), weighted for the concentration of the two species. When a single indicator is used, this method is limited to measurements in the pH range p K a ± 1, but this range can be extended by using mixtures of two or more indicators.

8. Isosbestic point - Wikipedia

   en.wikipedia.org/wiki/Isosbestic_point

   The standards used include potassium dichromate (isosbestic points at 339 and 445 nm), bromothymol blue (325 and 498 nm) and congo red (541 nm). The wavelength of the isosbestic point determined does not depend on the concentration of the substance used, and so it becomes a very reliable reference.

9. Organobromine chemistry - Wikipedia

   en.wikipedia.org/wiki/Organobromine_chemistry

   Bromothymol blue is a popular indicator in analytical chemistry. Pharmaceuticals. Commercially available organobromine pharmaceuticals include the vasodilator ...