User:Elaine Marie Robbins/Notebook/CHEM-496/2012/02/14: Difference between revisions

From OpenWetWare
Jump to navigationJump to search
Line 34: Line 34:




*Graph of peak wavelength vs -log(ionic strength of tris buffer solution).
* Graph of peak wavelength vs -log(ionic strength of tris buffer solution).


<center>[[Image:Peak wavelength vs -log(ionic strength) 2-14-12.jpg]]</center>
<center>[[Image:Peak wavelength vs -log(ionic strength) 2-14-12.jpg]]</center>

Revision as of 12:50, 21 February 2012

Absorbance vs Tris Concentration <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page
<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>

Objective

To continue the experiment performed on 02/01/12 to determine the effects of various concentrations of tris buffer on AuNP absorbance.

Description

  1. Take UV-vis data for various dilutions of tris buffer (pH 10.9)
    • 1 M
    • 500 mM
    • 200 mM
    • 100 mM
    • 75 mM

Data

  • Graph of absorbance vs wavelength for AuNP and different dilutions of tris

While all concentrations of tris buffer cause a peak shift towards shorter wavelengths, the higher concentrations tended to yield lower absorbance values.


  • Graph of peak absorbance vs -log(ionic strength of tris buffer solution).


  • Graph of peak wavelength vs -log(ionic strength of tris buffer solution).

Notes



Retrieved from "https://openwetware.org/mediawiki/index.php?title=User:Elaine_Marie_Robbins/Notebook/CHEM-496/2012/02/14&oldid=586536"