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This e-module provides an introduction to the analytical chemist on the following topics:

  • The significance of signal and noise in chemical measurements
  • The origin of noise in chemical measurements
  • How noise degrades useful chemical information
  • The statistical treatment of noise and the definition of a signal-to-noise ratio
  • Methods used to improve the reliability of chemical measurements by enhancing the signal-to-noise ratio


Developed by:
Dr. Stephen C. Petrovic
Southern Oregon University

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