Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 3477 for “"spectrometry"”.
-
Enhanced Electrospray Ionization for Mass Spectrometry and Ion Mobility Spectrometry
… commonly used ionization techniques for mass spectrometry (MS) and ion mobility spectrometry (IMS), and efforts continue to improve its performance. ESI-MS is most recognized for its wide application to biomacromolecules where high sensitivity is of paramount importance. However, the major …
-
Plastic scintillation spectrometry
Plastic scintillators provide homeland security organisations with large area, low cost gamma-ray counters at international borders. Currently these detectors cannot distinguish between the sources they detect, leading to high false alarm rates during primary screening. These alarms must be …
-
Developments in Raman spectrometry and intracavity laser absorption spectrometry for quantitative analysis
… of reflectance mode and transmission Raman spectrometry for direct non-invasive quantitative analysis of a pharmaceutical tablet with < 3% w/w active ingredient (API). In the initial part of the study, an HPLC method was devised to quantify chlorpheniramine maleate (the API) in a sample set …
-
Quantitative crosslinking mass spectrometry
… by existing technologies. Crosslinking mass spectrometry (CLMS) can provide residue-resolution distance restraints, which may in principle be quantified to obtain unique insights into the structural flexibility of proteins. However, quantitative crosslinking mass spectrometry (QCLMS) needs to …
-
Laser ablation ICP spectrometry.
… ablation inductively coupled plasma emission spectrometry for rapid elemental analysis of a diverse range of samples: glasses, aqueous solutions, oils, coated steels and glasses, and biological samples.Bulk analysis of glasses for major, minor and trace elements is reported. Results showed …
-
Computed Tomographic Imaging Spectrometry
A Computed Tomographic Imaging Spectrometer (CTIS) is an imaging spectrometer which can acquire a hyper-spectral data set in a single snapshot (one focal plane array integration time) with no moving parts. A specially designed dispersing element, which separates light from the three-dimensional …
-
Electrohydrodynamic Ionization Mass Spectrometry
Made available in DSpace on 2014-12-13T20:10:32Z (GMT). No. of bitstreams: 1 7913522.pdf: 3974491 bytes, checksum: 59719994a36bcfa29226714fb033a0b8 (MD5) Previous issue date: 1978
-
Mass spectrometry of crosslinked peptides
Proteins are central functional components of life, yet studying their structure and interactions remains a major challenge. The work I present in this thesis aims at addressing this challenge, advancing the identification of crosslinked peptides by analysing their mass spectrometric fragmentation …
-
Supercritical fluid chromatography - mass spectrometry
… a complementary method.<br/>SFC coupled to mass spectrometry, with an electrospray ion source, was used to<br/>analyse diverse series of test compounds. The ionisation of samples in the absence of<br/>high voltage, i.e. ionisation voltages, was observed when a SFC was coupled to<br/>electrospray …
-
Aspects of ultrasonic relaxation spectrometry
This thesis is divided into two sections: -a) The development and application of a new method forthe analysis of the ultrasonic relaxation spectra of molecules undergoing conformational changes.The analytical technique described has the advantageover previous methods of treating ultrasonic …
-
Protein Characterization by Mass Spectrometry
<p>Powerful new techniques in mass spectrometry (MS) provide an unprecedented opportunity to develop methods that facilitate protein characterization. This thesis utilizes matrix-assisted laser desorption/ionization and electrospray ionization MS to explore protein structure. Starting at the …
-
Mass spectrometry studies of immunoglobulins
… method combining 2D SDS-PAGE separation and mass spectrometry (MS) analysis was used for de novo sequencing of Ig in a fat biopsy for which the corresponding DNA was unavailable, and for characterizing the LC proteins found in autopsied kidney, serum and urine samples from patients with AL …
-
Mass spectrometry of substituted benzils
The positive and negative ion mess spectra and appearance potentials were determined for the following compounds: benzil, 4-methylbenzil, 4- methoxybenzil, 4-methylmercaptobenzil, 4-dimethylaminobenzil, 4-chlorobenzil, 4—nitrobenzil, 4,4'-dimethylbenzil, 4,4'-dimethoxybenzil, 4,4'- …
-
Trends in Tungsten Coil Atomic Spectrometry
… In this work, tungsten coil atomic absorption spectrometry (WCAAS) and tungsten coil atomic emission spectrometry (WCAES) are used to determine several different metals and even a non-metal at low levels in different samples. Improvements in instrumentation and new strategies to reduce matrix …
-
Particle formation in ambient mass spectrometry
… atmospheric pressure ion formation used in mass spectrometry: atmospheric pressure matrix-assisted laser desorption ionization (MALDI) and inlet ionization. The methods for particle formation were 1) ultraviolet (UV) laser ablation, 2) infrared (IR) laser ablation, and 3) shock-generated particle …
-
Photodetection and Spectrometry at the Nanoscale
Over the past fifteen years, one- and two-dimensional nanostructures have drawn intense attention across a range of scientific fields. For optoelectronic device applications these nanomaterials are particularly attractive due to their fundamental physical properties, such as dramatic environmental …
Page 1 of 174