AU Biomaterials Design Lab:Lab Members/CHEM571:Notebook/Chem 471- Fall 2018/2018/09/11

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Methionine and Cystine: Basic solutions None of the acid samples produced any viable results- no red shift. Moving on to strong basic solutions and focusing on methodology Preparing a stronger NaOH stock solution: 20 mM NaOH 20 mM NaOH = 0.02 M MW NaOH= 39.997 g/mol --> for a 0.02 M stock solution 0.084 g NaOH (s)/ 100 mL DI water pH Assay w/ Meth 5 mM NaOH 7.5 mM NaOH 10 mM NaOH 12.5 mM NaOH Repeat with Cystine: 4 hours in an oven at 80℃- check samples the next day