User:Michael F. Nagle/Notebook/Chem 571/2012/11/28
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| - | == | + | ==Objectives== |
| - | * | + | *Analyze post-dialysis 25-200 [Au/ADA] solutions with UV/Vis |
| + | *Prepare new solutions at narrower mole ratio range that includes optimal range for dissolution of AuNPs. | ||
| + | ==Procedure== | ||
| + | *Au/ADA solutions prepared [[User:Michael_F._Nagle/Notebook/Chem_571/2012/11/27|yesterday]] were analyzed via UV/Vis. | ||
| + | *A new set of solutions was prepared at mole ratios 6.7, 10, 13.3, 16.7, 20, 23.3, 26.7, 30, 33.3, 36.7 and 40 [Au/ADA] and heated at 85<sup>o</sup>C overnight. | ||
| + | *[[User:Puja_Mody/Notebook/Chem_571:_Gold_Nanoparticles/2012/11/28|Puja Mody and Mary Mendoza]] resuspended Au/ADA fibers with varying concentrations of pH 9.99 tris buffer. | ||
| + | ==Data== | ||
| + | [[Image:Postdialysis.jpg]] | ||
| + | ==Discussion== | ||
| + | *The 25 [Au/ADA] solution was purple, indicating AuNPs in solution, so we were suprised not to see a peak at 528nm. It may be due to experimental error or may have something to do with the fact a Shimadzu UV-1800 was used instead of a �UV-2550 like usual. | ||
| + | *The other group saw peaks at the start of their range, which went from 60-160. | ||
| + | *Since the other group saw small peaks at the lower end of their range, with the highest at 60 [Au/ADA], and we saw purple solution at 25 [Au/ADA], we decided to make a new set with mole ratios 6.7-40. | ||
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Revision as of 09:31, 7 December 2012
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