User:Madeleine Y. Bee/Notebook/CHEM-581 Experimental Chemistry/2014/09/05: Difference between revisions

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*Take UV Vis spectra for Malachite green at the following concentrations: 0ppm, 0.20ppm, 0.50ppm, 1.1ppm, 1.4ppm, 1.7ppm, and 2.0ppm  
*Take UV Vis spectra for Malachite green at the following concentrations: 0ppm, 0.20ppm, 0.50ppm, 1.1ppm, 1.4ppm, 1.7ppm, and 2.0ppm  
*Construct calibration curve for each of the two absorbance maximums
*Construct calibration curve for each of the two absorbance maximums
[[Image:2014_0905_MG_standards_abs.PNG]]
[[Image:2014_0905_MG_standards_abs.PNG|400px]]
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[[Image:2014_0905_MG_calibration.PNG]]
[[Image:2014_0905_MG_calibration.PNG|400px]]


====Equilibrium Measurements====
====Equilibrium Measurements====

Revision as of 12:45, 5 September 2014

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September 5, 2014

Procedures

Completing Film Synthesis

Continued from Friday, 8/29/2014<br.> Procedure detailed by Dr Hartings

  • Stir in Sodium Sulfate, 1% HCl, and Sodium Bicarbonate solutions

Beginning New Film Synthesis

Procedure detailed by Dr Hartings

  • Polymer-10% Clay Film
    • 1.0004 g PVA and 0/1077 g sodium montmorillonite (~1g PVA and ~.1g NaM)
  • Polymer Film
    • 1.0050 g PVA (~1g)

UV-vis Measurements

  • Take UV Vis spectra for Malachite green at the following concentrations: 0ppm, 0.20ppm, 0.50ppm, 1.1ppm, 1.4ppm, 1.7ppm, and 2.0ppm
  • Construct calibration curve for each of the two absorbance maximums

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Equilibrium Measurements

  • Dilute 200 ppm solutions 100x and 80 ppm solutions 50x to 10 mL & transfer to glass test tube (3 mL needed for absorbance measurements)
  • Determine the amount of Malachite green absorbed into a film
  • Determine the equilibrium of free Malachite green vs bound malachite green with I.C.E. table
  • Determine the mass of malachite green absorbed per mass of film



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