User:Michael S. Bible/Notebook/CHEM-671/690 Lab Notebook/2016/04/13

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Test pH effects

  • Yesterday's protocol was used again today except that the samples were all incubated at room temperature for two hours and 8 samples of a 2.2 and 10.8 pH solution were created. For details on adjusting the pH of the supernatant solutions, please see Nicole's notebook.

Results

  • Below are the raw and calculated data for adjusted pH samples.

The images above show the percent change in Rhodamine B concentration after incubation for 2 hours at different pHs. It is worth noting that the same erroneous analysis was used for these as yesterday. It was too late to redo these samples with a new calibration curve, however.


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