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 7 of 7 for “"chemical fingerprint"”.
-
DEVELOPMENT OF A CHEMICAL FINGERPRINT FOR DETECTING UNTREATED HUMAN SEWAGE POLLUTION IN SURFACE WATER
… weather conditions. The main feature of these chemical markers is their degradation behavior at municipal wastewater treatment plants: some markers are completely removed (labile markers), whereas others show only partial or no removal at all (conservative markers). A set of ubiquitous chemical …
-
Safety Assessment and Chemical Fingerprint Analysis of Medicinal Plants Commonly Consumed As Herbal Teas; Rooibos (<em>Aspalathus Linearis</em>) and Moringa (<em>Moringa Oleifera</em>)
… interaction on consumers and the quest for chemical markers for chemical fingerprinting development are provided. Rooibos tea (<em>Aspalathus linearis</em>) is a popular South African herbal tea enjoyed worldwide. Limited reports indicate the potential of rooibos tea to alter the activity of …
-
Through barrier detection using surface enhanced spatially offset Raman spectroscopy
… this challenge since it provides a unique chemical fingerprint without the need to destroy the sample. In spite of this, conventional Raman can be limited by sample volume and thickness, often failing to probe beneath the surface or through samples obscured by an opaque barrier.;Spatially …
-
Elucidation of odour-potent compounds and sensory profiles of Vidal blanc and Riesling icewines from the Niagara Peninsula : effect of harvest date and crop level
… endured by icewine grapes would change their chemical composition, resulting in unique chemical fingerprint and sensory properties, and would be affected by harvest date (HD) and crop level (CL). The objectives were: 1) to identify odour-active compounds using gas chromatographic and sensory …
-
Utilization of aqueous product generated by hydrothermal carbonization of waste biomass
Hydrothermal carbonization (HTC) is a thermochemical treatment process that allows for the conversion of relatively dilute biomass slurries into value added products which are hydrochar and filtrate. This investigation focuses on the potential for utilization of the filtrate (aqueous by-product) …
-
Ambient measurements of chemical and physical properties of organic aerosols: Insights into formation, growth, and heterogeneous chemistry
… Chapter II, the size-resolved chemical composition of sub-micron aerosol was measured at a suburban forested site in North Carolina. Two events were identified in which particle growth, presumably by gas-to-particle conversion, was dominated by accumulation of organic aerosol …
-
Chemical Processing of Fingerprints on Thermal Paper
… individuals placed a total of thirty sets of fingerprints per person on thermal paper over a 10-day period. Each set of fingerprints consisted of three fingerprints on the thermal side of paper and three fingerprints on the nonthermal side of paper. During the 30 to 40-day time period, …