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 12 of 12 for “"Chromatography, Gas"”.
-
Chemical and Chromatographic Studies on Dimeric Fatty Acids (Heated Fats)
… chromatographic systems including gel permeation chromatography, high performance size exclusion chromatography, gas liquid chromatography, high performance liquid chromatography and thin layer chromatography were developed in order to identify and isolate dimer present in an oxidation mixture …
-
A Novel Phytoestrogen that Acts as an Agonist for Human Estrogen Receptors.
… of hormone-related diseases. Using Thin Layer Chromatography, gas chromatography/mass spectrometry (GC/MS), and proton nuclear nagnetic resonance (HNMR), I identified 4-ethoxymethylphenol (4EM) found in Maclura pomifera. While most phytoestrogens are heterocyclic compounds, 4EM is a simple …
-
Study of Neem bark tannins for the leather industry
… was found to be 1550 by gel permeation chromatography. Gas chromatography-mass spectroscopy demonstrated the complex nature of NBT molecular masses consist of monomeric, dimeric and trimeric units of procyanidin B and C types respectively. IR and FT-IR spectroscopy results were …
-
Growth enhancement and selection attempts for Spirillum volutans
… growth factors was investigated. Thin-layer chromatography, gas chromatography, and amino acid analysis were employed to identify those amino compounds (if any) that decreased or disappeared in the medium after 48 h of growth. None could be found. Numbers of viable cells were not greatly …
-
Microemulsions formation, stability and their characterisations
… techniques (e.g., high performance liquid chromatography, gas chromatography, ion-exchange chromatography, mass spectrometry, viscometry, electrical conductivity, photon correlation spectroscopy, UV-spectrophotometry, thermogravimetric analysis, transmission electron microscopy, surface and …
-
Developing starter cultures for the optimisation of cassava (Manihot esculenta Crantz) fermentation
… activities by High Performance Liquid Chromatography & Gas Chromatography. Fermentations using starter cultures of various combinations using 13 LAB, 12 softening and one odour producer bacteria were developed and assessed by studying their interactive effects on pH, softening, colour …
-
Fatty acid profiles from the dissimilation of hydrocarbons by Micrococcus cerificans
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
-
Survey of Flavonoids and Their Distribution in Different Kinds of Onions Using High Performance Liquid Chromatography and Gas Chromatography Mass Spectrometry.
… analyzed subsequently by high performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GCMS). Statistical calculations were done to see if there are significant differences in the varieties of onions studied from the chromatographic profiles obtained. The chromatograms …
-
MicroGC: Of Detectors and their Integration
Gaseous phase is a critical state of matter around us. It mediates between the solid crust on earth and inter-stellar vacuum. Apart from the atmosphere surrounding us where compounds are present, natively, in a gaseous phase, they are also trapped within soil and dissolved in oceanic water. …
-
Investigation on the Antioxidant Capabilities of Spice Extracts in Inhibition of Long Chain Polyunsaturated Fatty Acids Oxidation and Cholesterol
Antioxidant capabilities of the spice extract of ginger, oregano, rosemary and turmeric were evaluated by monitoring inhibition of DHA and EPA in a menhaden fish oil model and cholesterol oxidation model system. The spice extracts were mixed with the fish oil at 1, 2.5 and 5 % (w/w) and 1, 2.5 and …
-
Investigations into the determination of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) by capillary gas chromatography
… representing 10 isomeric groups) by capillary gas chromatography coupled with mass spectrometry (GC/MS, for PAHs) and electron capture detection (GC/ECD , for PCBs) were studied, with emphasis on the effect of solvent. Having various volatilities and different polarities, solvent studied …