Outline of Qiu Ci Li's 1997 Summer Project "Preparation and Characterization of N-Acetyl Microperoxidase-8"

Step Number
Task
Methodology
Concepts Taught
1
Acetylate microperoxidase-8
ultrafiltration, dialysis, pH meter
weighing, stoichiometry, acid-base, buffers, pH, ultrafiltration, dialysis
2
Prove peptide is acetylated (color test)
Ninhydrin reaction
amino acids, peptides
3
Purify product by HPLC
Perfusion ion exchange HPLC
chromatography, ion exchange, HPLC

revisit buffers and pH, chromophore, UV-vis, absorbance

4
Demonstrate product purity
Electrospray mass spectrometry
ionization, mass spectrometry, electrospray
5
Characterize electronic structure of product
UV-vis
coordination number, spin state, charge, revisit chromophore, absorbance, and UV-vis
6
Characterize product electrochemically in aqueous solution
Cyclic voltammetry
statistics, mass transport, redox, reversibility
7
Characterize product electrochemically in dimethyl sulfoxide
Cyclic voltammetry
revisit statistics, mass transport, redox, reversibility



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