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  2. pH meter - Wikipedia

    en.wikipedia.org/wiki/PH_meter

    Portable, or field pH meters, are handheld pH meters that are used to take the pH of a sample in a field or production site. [19] In-line or in situ pH meters, also called pH analyzers, are used to measure pH continuously in a process, and can stand-alone, or be connected to a higher level information system for process control. [20]

  3. List of performances by Bini in media - Wikipedia

    en.wikipedia.org/wiki/List_of_performances_by...

    Bini Official Youtube Channel Web series showcasing the group's road trip adventures across various locations, totaling 17 episodes [110] 2023 Podcast Ng Mga Walang Jowa by Bini: Spotify, Bini Official Youtube Channel Video podcast featuring pairs of members discussing their perspectives on love and relationships, totaling 12 episodes [111]

  4. pH indicator - Wikipedia

    en.wikipedia.org/wiki/PH_indicator

    A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. [1] Hence, a pH indicator is a chemical detector for hydronium ions (H 3 O +) or hydrogen ions (H +) in the ...

  5. pH - Wikipedia

    en.wikipedia.org/wiki/PH

    The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases. [2] The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. [3]

  6. Beckman Coulter - Wikipedia

    en.wikipedia.org/wiki/Beckman_Coulter

    The company was founded by Caltech professor Arnold O. Beckman in 1935 as National Technical Laboratories to commercialize a pH meter that he had invented.. In the 1940s, Beckman changed the name to Arnold O. Beckman, Inc. to sell oxygen analyzers, the Helipot precision potentiometer, and spectrophotometers.

  7. Category:pH indicators - Wikipedia

    en.wikipedia.org/wiki/Category:PH_indicators

    This category contains articles about pH indicators: chemical compounds which change colour or fluorescence in response to changes in pH Wikimedia Commons has media related to PH indicators . Subcategories

  8. Dianna Cowern - Wikipedia

    en.wikipedia.org/wiki/Dianna_Cowern

    She started making science videos while working as a mobile app developer at General Electric. [11] She started her channel Physics Girl on October 21, 2011. [12] In an interview with Grant Sanderson, she said that some of the earlier videos were later deleted from the channel. [9] Cowern has also participated in various events as a speaker.

  9. Arnold Beckman - Wikipedia

    en.wikipedia.org/wiki/Arnold_Beckman

    Arnold Orville Beckman (April 10, 1900 – May 18, 2004) was an American chemist, inventor, investor, and philanthropist. While a professor at California Institute of Technology, he founded Beckman Instruments based on his 1934 invention of the pH meter, a device for measuring acidity (and alkalinity), later considered to have "revolutionized the study of chemistry and biology". [1]