User:Alicia Rasines Mazo/Notebook/CHEM-581 Experimental Chemistry I/2014/10/24: Difference between revisions

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* Allow to settle
* Allow to settle
* Rinse with water to remove ethanol
* Rinse with water to remove ethanol
* Add a layer of sand at the top to avoid disturbance of packing column


===Concentration of 10.4 ppm BPA solution===
* Added 10 mL of BPA
* Added 10 mL water
* Added 30 mL of methanol
*Collected eluate at 5 mL intervals




Revision as of 10:36, 24 October 2014

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Tasks for October 24

  • To prepare packed columns
  • To perform column chromatography on BPA solutions from Oct. 22

Preparation of packed chemicals

  • Place glass wool on bottom of column
  • Cover with a layer of sand
  • Add silica packing material prepared by dissolved 10 g of silica in methanol
  • Allow to settle
  • Rinse with water to remove ethanol


Concentration of 10.4 ppm BPA solution

  • Added 10 mL of BPA
  • Added 10 mL water
  • Added 30 mL of methanol
  • Collected eluate at 5 mL intervals



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