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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 391 to 400 of 1330 (0.009 seconds)| 391 |
Approaches to the analysis of single beads for combinatorial chemistryFreeman, Catherine E. January 2001 (has links)
No description available.
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| 392 |
Mineralogical changes during the hydration and firing of refractory calcium aluminate cementsPayne, David Robert January 1990 (has links)
No description available.
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| 393 |
A comparison of electrophoretic and chromatographic separation techniques for the determination of chiral and achiral impuritiesReilly, John January 2002 (has links)
No description available.
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| 394 |
Electrochemical characterization of aqueous chlorine and inorganic chloramine speciesSimper, Jessica Mary January 2000 (has links)
No description available.
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| 395 |
Optical sensing of metal ions in water using sol-gel entrapped reagentsHigginson, Neil A. C. January 2001 (has links)
No description available.
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| 396 |
Nitric oxide biosensing using c-type cytochromesHedges, Duncan Howard Peter January 2003 (has links)
No description available.
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| 397 |
Laser desorption/ionization ion trap mass spectrometry studies of biomolecules and synthetic polymers : a study in the retail sectorReynolds, James Christopher January 2002 (has links)
No description available.
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| 398 |
Pharmaceutical and environmental analysis using membrane inlet mass spectrometryLamarca, David GoÌmez January 2002 (has links)
No description available.
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| 399 |
Study of Inâ‚â†-â†xâ†-â†yGaâ†xAlâ†yAs multiple quantum well infrared photodetectors grown on GaAs substratesWong, Alan Lip Yau January 2002 (has links)
No description available.
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| 400 |
Profiling of drugs of abuse : a new method for amphetamineJalava, Anna-Kaisa January 2002 (has links)
In the literature survey, a summary of chemical impurity profiling methods is presented for the most common drugs. These include cannabis, LSD, heroin, cocaine and amphetamine-type stimulants. The survey also details the statistical techniques commonly used for profiling. The main aim of the experimental work was carried out as part of a European project to develop a harmonised amphetamine profiling method which could be applied at national laboratories utilising an international database. The optimisation of the method was divided into four steps including (i) identification and synthesis of standard impurities, (ii) optimisation of the GC method, (iii) optimisation of the extraction procedure and (iv) evaluation of the suitability of the method between different laboratories. Ten standard substances were synthesised and the structure of the compounds confirmed through spectrometric data. The optimisation of the GC method was based on the optimisation of sample introduction, chromatography and detection. In the optimisation of the extraction procedure, liquid-liquid extraction (LLE) and solid phase extraction (SPE) techniques were compared. Using the optimised profiling method, several synthesised amphetamine batches and street samples were analysed. Repeatability and reproducibility at the intra- and inter-laboratory level indicated that the method is suitable to use as the harmonised method at national laboratories utilising a common database.
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