User:Sarah Burkhard/Notebook/471 Nano Notebook/2016/10/12

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UV Vis Silver Round 2

By observation, it looks like nano particles were formed in pH 10, 11 and 12 for Fructose 0.125 mM. While not brown-ish, the solutions looked at least homogeneous and orange. From a first glance at UV Vis data, there is no peaks , but rather a steady increase of absorption from the visible into the UV spectrum.

For 0.25 mM Fructose, observations show again differences in color and composition of the solutions. pH 4 looked homogeneous, but white, instead brownish. It showed accordingly high, continuous absorption. pH 11 and 12 looked good; orange, and homogeneous. pH 11 shows a slight peak around 440 nm.

Data Analysis

Image:161012UV-VisBSApart1.PNG

The UV-Vis spectra for [Fructose]=0.125 mM for pH 4-12 are shown above. The peak in pH 12 is not as pronounced as last week with pH 12, [Fructose]=0.0625.


Image:161012UV-VisBSApart2.PNG

The UV-Vis spectra for [Fructose]=0.25 mM for pH 4-12 are shown above. The peak in pH 12 is not as pronounced as last week with pH 12, [Fructose]=0.0625.


Image:161012UV-VisBSApart3.PNG

The A(530) for [Fructose]=0.125 mM for pH 4-12 are shown above.


Image:161012UV-VisBSApart4.PNG

The A(530) for [Fructose]=0.25 mM for pH 4-12 are shown above.



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