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DC Polarography – Dropping Hg electrode (DME)

DC Polarography – Dropping Hg electrode (DME). http://www.ceb.cam.ac.uk/data/images/groups/CREST/Teaching/hydro/fig1.gif. First analytically reproducible electrode, quantitiative metal ion and organic analysis. Prof. Jaraslov Heyrovsky, Charles Univ., Prague, Czech Republic,

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DC Polarography – Dropping Hg electrode (DME)

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  1. DC Polarography – Dropping Hg electrode (DME)

  2. http://www.ceb.cam.ac.uk/data/images/groups/CREST/Teaching/hydro/fig1.gifhttp://www.ceb.cam.ac.uk/data/images/groups/CREST/Teaching/hydro/fig1.gif First analytically reproducible electrode, quantitiative metal ion and organic analysis

  3. Prof. Jaraslov Heyrovsky, Charles Univ., Prague, Czech Republic, Nobel Prize in Chemistry 1959 for discovery of Polarography Prof. Petr Zuman, Clarkson Univ. Heyrovsky’s PhD student and my advisor, “scientific grandpa” to some of you!

  4. Modern 3-electrode potentiostat Voltage follower Output, I vs. E To computer

  5. Counter = I Rcell I Ru working Counter reference working

  6. Steady state I-E methods • dc polarogrpahy • rotating disk voltammetry • square wave voltammetry Square wave input

  7. Steady state voltammetry methods IL

  8. Staircase input waveforms are used to approximate linear scans

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