User:Alicia Rasines Mazo/Notebook/CHEM-581 Experimental Chemistry I/2014/10/22: Difference between revisions

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===Measuring absorbance of films in PBA===
===Measuring absorbance of films in PBA===
* Soaked PVA-Clay polymer films in 10 ppm PBA and measured absorbance twice ( from two scintillation vials) at each time slot.  
* Soaked PVA-Clay polymer films in 10 ppm PBA and measured absorbance twice ( from two scintillation vials) at each time slot.  
** Note that the 10 ppm PBA solution was made by James and Eleni
** Note that the 10.4 ppm PBA solution was made by James and Eleni
***James measured out 10.4 mg of BPA and dissolved in 5 mL of methanol, then diluted to 1 L with distilled water.
***James measured out 10.4 mg of BPA and dissolved in 5 mL of methanol, then diluted to 1 L with distilled water.
** During UV-Vis measurements films were removed to avoid further absorption of chemicals.  
** During UV-Vis measurements films were removed to avoid further absorption of chemicals.  

Revision as of 07:21, 22 October 2014

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Tasks for October 22

  • To analyse films in Bisphenol A (BPA)
  • To finish film synthesis from Oct. 17
  • To finish measuring density of films (Reported on 17/10 Notebook entry)

Completion of film synthesis

Placed film in sodium sulfate, 1% HCl and sodium bicarbonate.

Measuring absorbance of films in PBA

  • Soaked PVA-Clay polymer films in 10 ppm PBA and measured absorbance twice ( from two scintillation vials) at each time slot.
    • Note that the 10.4 ppm PBA solution was made by James and Eleni
      • James measured out 10.4 mg of BPA and dissolved in 5 mL of methanol, then diluted to 1 L with distilled water.
    • During UV-Vis measurements films were removed to avoid further absorption of chemicals.


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