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Related Experiment Videos

Highly accurate nephelometric titrimetry.

Xiancheng Zhan1, Chengrong Li, Zhiyi Li

  • 1School of Pharmacy, West China Medical Center, Sichuan University, No. 17, Block 3, Ren-Min-Nan-Lu Road, Chengdu, Sichuan 610041, People's Republic of China. xczhan@mail.sc.cninfo.net

Journal of Pharmaceutical Sciences
|January 6, 2004
PubMed
Summary

This study introduces a new nephelometric titrator for precise precipitation reaction endpoint detection using scattered light intensity. This method achieves high accuracy, with errors within 0.2% for pharmaceutical analyses.

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Area of Science:

  • Analytical Chemistry
  • Physical Chemistry

Background:

  • Precipitation reactions are crucial in chemical analysis.
  • Accurate endpoint determination is essential for reliable quantitative results.
  • Traditional methods can be subjective or lack precision.

Purpose of the Study:

  • To develop and validate a novel method for accurately indicating precipitation reaction endpoints.
  • To introduce a new nephelometric titrator with an integrated sensor.
  • To assess the accuracy and applicability of this nephelometric titrimetry.

Main Methods:

  • Measurement of relative scattered light intensity in the titrate.
  • Utilizing a newly devised nephelometric titrator with an internal sensor.
  • Theoretical discussion of nephelometric titrimetry accuracy.

Related Experiment Videos

  • Model titration of NaCl with AgNO(3).

    • Main Results:

    • The new nephelometric titrator accurately detects precipitation endpoints.
    • Experimental conditions yielded relative errors and deviations within 0.2%.
    • Demonstrated applicability in pharmaceutical analyses of phenytoin sodium and procaine hydrochloride.

    Conclusions:

    • Nephelometric titrimetry offers a highly accurate method for endpoint detection.
    • The developed titrator and method are reliable for quantitative chemical analysis.
    • This technique shows significant potential for pharmaceutical quality control.