Development of a Novel Mass Spectrometric ... - Jacobs University
Development of a Novel Mass Spectrometric ... - Jacobs University
Development of a Novel Mass Spectrometric ... - Jacobs University
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Results and Discussion<br />
Intens.<br />
[%]<br />
100<br />
50<br />
[%] 0<br />
100<br />
50<br />
[%] 0<br />
100<br />
50<br />
[%] 0<br />
100<br />
50<br />
[%] 0<br />
100<br />
50<br />
[%] 0<br />
100<br />
50<br />
0<br />
414.9<br />
380.9<br />
448.8<br />
414.8<br />
474.3<br />
358.1<br />
498.6<br />
527.5<br />
230.9<br />
576.5<br />
200 300 400 500 600 700 800 m/z<br />
Figure 3-48 Fragmentation <strong>of</strong> high mass chlorinated components within the waste<br />
extract<br />
3.4.7 Oxidative Degradation <strong>of</strong> Complex Mixture <strong>of</strong> Shredder Waste<br />
In an attempt to further achieve an insight about the structure composition <strong>of</strong> the<br />
unsaturated hydrocarbons within the content <strong>of</strong> the light shredder waste, oxidation<br />
<strong>of</strong> these hydrocarbon components within the waste sample was performed. This<br />
method was introduced in the literature in order to explore the composition <strong>of</strong> the<br />
UCM by changing the hydrocarbons to functionalized compounds described to be<br />
easily resolved and identified. Gough and Rowland used this oxidative degradation<br />
over UCM <strong>of</strong> hydrocarbons from lubricating oil feed stocks to characterize<br />
them. 17 After reacting the light shredder waste extract with chromium trioxide in<br />
acetic acid for six hours, the functionalised products were measured by mass<br />
spectrometry. This time ESI was also employed because the products <strong>of</strong> oxidative<br />
degradation were expected to be polar compounds such as carboxylic acids,<br />
ketones and lactones. The products <strong>of</strong> oxidation from the waste sample were<br />
79