Development of a Novel Mass Spectrometric ... - Jacobs University

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Results and Discussion the data obtained from the Kendrick plot of the PCBs standard in figure 3-83. The other classes of chlorinated compounds are as well observed in the Kendrick plot at KMD = 1.3 and KMD = 2.1 which reflect the presence of high mass chlorinated compounds within light shredder waste fraction. Similarly this Kendrick plot was used to identify and track the chlorinated components among different samples. KMD 1.0 Kendrick plot (CH 2 ) for (-MS) spectrum of waste sample 0.8 0.6 0.4 0.2 0.0 200 300 400 500 600 700 800 900 NKM Figure 3-81 Kendrick plot of (CH 2 ) for waste mixture upon (-) APCI-MS 2.4 Kendrick plot (Cl) for (-MS) spectrum for waste sample KMD 2.2 2.0 1.8 1.6 1.4 1.2 1.0 200 300 400 500 600 700 800 900 NKM Figure 3-82 Kendrick plot of (Cl) for waste mixture upon (-) APCI-MS 107
Results and Discussion KMD 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 Kendrick plot (Cl) for (-MS) spectrum of PCBs Congener Mix 200 250 300 350 400 450 500 NKM Figure 3-83 Kendrick plot of (Cl) for PCBs Congener Mix upon (-) APCI-MS 3.6.1.2 Kendrick Plot for Oxidation Products Another employment of Kendrick plot was for screening the change in chemical composition of the complex mixture of light shredder waste upon oxidation process. The Kendrick plot of three samples was established from their respective positive APCI mass spectra. The samples are described in figure 3-84 as I3, O2 and O3. I3 is the initial waste complex before oxidation. O2 represents the oxidation products that were dissolved in MeOH before injection into the APCI- MS. O3 is the sample containing also the same oxidation products but they were dissolved and directly infused using n-heptane. Visual scanning of the graphs reveals that the yield of oxidation is about 90%. This is due to the disappearance of initial components of I3 sample in the Kendrick plots of oxidation products injected in methanol or in n-heptane as in O2 and O3 respectively. The spread of Kendrick plots of oxidation products of sample O2 was different from that obtained by O3. This is because methanol retains polar oxidised products where as n-heptane retains the nonpolar decomposed products in addition to initial unreacted compounds. 108
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Development of a Novel Mass Spectro
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Declaration of Authorship I ,Nadim
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This work has been carried out unde
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Contents Contents Declaration of Au
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List of Figures List of Figures Fig
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List of Figures Figure 3-39 MS 2 fr
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List of Tables List of Tables Table
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Abbreviations Abbreviations APCI AP
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Abbreviations UV VGOs VOCs VRs ultr
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Introduction Analytical chemistry h
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Introduction 1.2 Presence and Fate
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Introduction aliphatic hydrocarbons
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Introduction Figure 1-1 Examples of
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Introduction Figure 1-2 Range of io
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Introduction fractions. 42 Another
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Introduction 1.3.5 APLI Other crude
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Introduction products). Other molec
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Introduction Other studies performe
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Introduction APLI-FT ICR-MS Crude o
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Introduction spectrometry in as muc
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Introduction catalytic processing t
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Introduction Figure 1-6 Kendrick ma
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Introduction including determinatio
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Introduction 1.5 Scope and Signific
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Experimental e) Other model mixture
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Experimental 2.2.2 Preparation of O
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Experimental 2.4 Graphical Presenta
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Results and Discussion experiment.
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Results and Discussion Intens. [%]
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Results and Discussion common featu
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Results and Discussion 3.2 APCI-TOF
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Results and Discussion These compou
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Results and Discussion Ions were pr
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Results and Discussion procedure ba
Page 73 and 74: Results and Discussion Intens. [%]
Page 75 and 76: Results and Discussion to produce m
Page 77 and 78: Results and Discussion 519.5863 519
Page 79 and 80: Results and Discussion Higher mass
Page 87 and 88: Results and Discussion isolated fro
Page 93 and 94: Results and Discussion 3.4.5 Tandem
Page 97 and 98: Results and Discussion injected int
Page 101 and 102: Results and Discussion 3.4.8 Quanti
Page 103 and 104: Results and Discussion Int. x 10000
Page 105 and 106: Results and Discussion Table 3.6 Qu
Page 107 and 108: Results and Discussion assessment o
Page 109 and 110: Results and Discussion hydrocarbons
Page 117 and 118: Results and Discussion of n-alkanes
Page 119 and 120: Results and Discussion flow (in I2)
Page 121 and 122: Results and Discussion Other intere
Page 123: Results and Discussion Figure 3-80
Page 127 and 128: Results and Discussion KMD 1.1 1 Le
Page 129 and 130: Results and Discussion 3.6.4 Asphal
Page 131 and 132: Conclusions In conclusion we could
Page 133 and 134: References References 1. Fay, R. M.
Page 135 and 136: References 23. Colavecchia, M. V.,
Page 137 and 138: References 47. Dzidic, I., Petersen
Page 139 and 140: References Hydroconversion Processe
Page 141 and 142: References 91. Golovlev, V. V., All
Page 143 and 144: Appendix Light shredder waste Meas.
Page 145 and 146: 419.4592 C 30 H 59 419.4611 4.6 421
Page 147 and 148: Liqui Moly car motor oil Meas. m/z
Page 149 and 150: 345.3511 C 25 H 45 345.3516 1.5 349
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