User:Zachary I. Mendel/Notebook/Zacks Notebook/2014/01/29: Difference between revisions
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==Notes== | ==Notes== | ||
* we noticed that added citrate took up some of the gold into solution. The ones that had more gold and low citrate would precipitate out, while high citrate less gold would be in solution. | * we noticed that added citrate took up some of the gold into solution. The ones that had more gold and low citrate would precipitate out, while high citrate less gold would be in solution. | ||
==Results== | |||
The UV-Vis spectra of the solutions were obtained and the following graph represents the spectra: | |||
[[Image:UV-Vis of Nanoparticle Solutions Danelmen.png|500px]] | |||
The UV-Vis data allowed to calculate particle size using this [http://pubs.acs.org/doi/suppl/10.1021/ac0702084/suppl_file/ac0702084si20070321_014144.pdf reference]. | |||
The following table summarizes those results and the calculated size of the particles for each solution. | |||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''Solution no.''' | |||
| align="center" style="background:#f0f0f0;"|'''1''' | |||
| align="center" style="background:#f0f0f0;"|'''2''' | |||
| align="center" style="background:#f0f0f0;"|'''3''' | |||
| align="center" style="background:#f0f0f0;"|'''4''' | |||
| align="center" style="background:#f0f0f0;"|'''5''' | |||
| align="center" style="background:#f0f0f0;"|'''6''' | |||
| align="center" style="background:#f0f0f0;"|'''7''' | |||
|- | |||
| Aspr||0.146||0.29||0.268||0.191||0.294||0.507||0.29 | |||
|- | |||
| A450||0.082||0.146||0.145||0.116||0.196||0.313||0.182 | |||
|- | |||
| Aspr/450||1.780487805||1.98630137||1.848275862||1.646551724||1.5||1.619808307||1.593406593 | |||
|- | |||
| Size (nm)||20-25||40-45||25-30||14-16||10||14-16||12.0-14.0 | |||
|} | |||
Solutions 1 and 5 were the only two not to form gold precipitate during nano particle synthesis. | |||
From the results, solution yields the best nano particle size and that ratio will be used throughout the semester for nano particle synthesis. | |||
Revision as of 10:23, 12 February 2014
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January 29thProcedure
Notes
ResultsThe UV-Vis spectra of the solutions were obtained and the following graph represents the spectra:
Solutions 1 and 5 were the only two not to form gold precipitate during nano particle synthesis. From the results, solution yields the best nano particle size and that ratio will be used throughout the semester for nano particle synthesis.
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