User:Douglas M. Fox/Notebook/AU CHEM-581 F2012 Lab Support/2014/08/21

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MG Adsorption Centrifuge and filter solutions UV/VIS spectra (see dropbox) Some 80ppm & 200ppm required dilutions for MG absorbance below 1 (5x & 20x) Undiluted used to obtain absorbance related to phenyl rings HxPh3P in solution HxPh3P leaching Is HxPh3P presence due to ion exchange or excess that is leached off during equilibrium? If excess, phenyl ring present in HPLC soak and solution should test positive for Br- anions Experiment 10 mg Ph3P-MT in 10 mL HPLC water equilibrate for 3 days