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(128 results)



Display: 20

    • Page 16

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    • 12 GC/MS chromatographs of the ethyl acetate extraction of methamphetamine are shown in Figures 4-11. Peaks at 2.5, 4.1, and 5.9 and 6.7 minutes indicate the presence of DMS, methamphetamine, and two unidentified peaks by GC-MS respectively and are...
    • Page 18

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    • 14 MS analysis in Figure 6 contains ion fragment peaks at 148.1, 91.1 and 58.1 (most intense) m/z corresponding to the GC peak at 4.7 minutes, indicates methamphetamine. The library search chromatograph for methamphetamine is shown in Figure...
    • Page 20

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    • 16 MS analysis in Figure 8 contains ion fragment peaks at 149.0, 91.1, 74.1 (most intense) and 58.1 m/z corresponding to the GC peak at 5.9 minutes (1.48%), indicates unidentified peak A. Figure 8: GC-MS spectra of ethyl acetate extraction of...
    • Page 21

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    • 17 MS analysis in Figure 9 contains ion fragment peaks at 148.1, 117.1, 91.1 (most intense) and 56.1m/z corresponding to the GC peak at 6.7 minutes (5.45%), indicates unidentified peak B. Figure 10 illustrates the GC chromatographs of the extracted...
    • Page 18

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    • 18 of the ladders was completed prior to the sample run, and the peak heights were too high, the loading cocktail was modified to contain 0.25μl of ILS 600 and 9.75μl of formamide. Due to limit of chemical resources, only those samples that had...
    • Page 25

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    • 21 CHAPTER FOUR: DISCUSSION AND CONCLUSIONS Methamphetamine Impurities The hypothesis, that a distinct pattern of impurities present in illicit methamphetamine specimens could be characterized by GC/MS, was supported during this research, despite...
    • Page 27

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    • 22 CHAPTER 4: DISCUSSION & CONCLUSIONS Real Time PCR and Melting Temperature Alleles This study provided evidence supporting Hypothesis 1 that results generated from qPCR and SYBR Green 1 fluorescent labeling confirms the presence of aDNA in...
    • Page 13

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    • 8 Another more recently developed method that identifies genomic differences employs qPCR and amplicon melting temperature variation. Many detection formats have been developed since the qPCR technique was first developed in 1996 (Real Time PCR,...
    • Page 13

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    • 9 CHAPTER TWO: EXPERIMENTAL PROCEDURE An Agilent 6890 series GC connected to an Agilent series Mass Selective Detector with autosampling capability (Agilent series injector) chromatographs was obtained. Separation was achieved with an...
    • Page 58

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    • accumulated sornc cattle of their own and no longer felt it necessary to lease these cattle, Lehi and his younger brothers leased them. They received a percentage of the cattle as p a p e n t for their work. By receiving about 215 of the calves...
    • Adams Head Peak

    • Adams Head (Garfield County, Utah); Sevier Plateau (Garfield County, Utah); Powell Point (Garfield County, Utah); Roads--Dixie National Forest (Utah)
    • Adams Head Peak, north of Panguitch, on the Sevier Plateau. Powell Point is in the backgound. Part of Scenic byways on SR-12.
    • Page 6

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    • beautifid new land. They passed along great swamps of cypress trees which were nonexistent in England. Finally they reached their destination, New Orleans, which was the portal through which most immigrants going west entered. Upon arrival, one of...

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