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Browsing by Author "Andersen, Jens E.T."

Browsing by Author "Andersen, Jens E.T."

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  • Estimation of measurement uncertainty of routine pH measurement in selected chemical laboratories 
    Menong, Mercy B.; Andersen, Jens E.T. (Botswana International University of Science and Technology, 2017-06)
    A procedure for estimation of measurement uncertainty of routine pH measurement using pH meter with pH range -2 to 16, three-point calibration, easy recall of calibration point and slope data, temperature compensation and ...
  • Estimation of uncertainty on pH measurement results: a direct pathway to quality assurance 
    Menong, Mercy B. (Botswana International University of Science and Technology (BIUST), 2020-06-23)
    A technique for estimation of measurement uncertainty of routine pH measurement using pH meters; Thermo scientific Orion Star and Basic 20 is presented. There are issues associated with pH measurements, what we actually ...
  • Scientific methodology in analytical chemistry 
    Andersen, Jens E.T. (Botswana International University of Science and Technology, 2017-06)
    Ever since the work of Robert Boyle, scientists have used the same methodology to obtain new information about mechanisms of nature. Together with other scientists at the time, Robert Boyle suggested that all scientific ...

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