Browsing School of Chemistry (Scholarly Articles) by Author "Glynn, Thomas J."
Now showing items 1-9 of 9
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Analysis of hydrocarbon bearing fluid inclusions HCFI) using time-resolved fluorescence spectroscopy
Przyjalgowski, Milosz A.; Ryder, Alan G.; Feely, Martin; Glynn, Thomas J. (Society of Photo-optical Instrumentation Engineers, 2005)Hydrocarbon-bearing fluid inclusions (HCFI) are microscopic cavities within rocks that are filled with petroleum oil, the composition of which may not have changed since the trapping event. Thus, the composition of that ... -
Evaluation of acridine in Nafion as a fluorescence-lifetime-based pH sensor
Ryder, Alan G.; Power, Sarah; Glynn, Thomas J. (2003)We report a novel fluorescence-lifetime-based pH sensing method that utilizes acridine incorporated into Nation (AcNaf) as the fluorescent indicator. The AcNaf sensor is excited using a 380 nm light emitting diode (LED) ... -
Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis.
Ryder, Alan G.; O Connor, Gerard M.; Glynn, Thomas J. (ASTM International, 1999)Raman spectroscopy offers the potential for the identification of illegal narcotics in seconds by inelastic scattering of light from molecular vibrations. In this study cocaine, heroin, and MDMA were analyzed using near-IR ... -
Influence of chemical composition on the fluorescence lifetimes of crude petroleum oils
Ryder, Alan G.; Glynn, Thomas J.; Feely, Martin (Society of Photo-optical Instrumentation Engineers, 2003)Fluorescence based methods are increasingly being used for the analysis of crude oils because they offer high speed, low cost, non-contact, and non-destructive testing options. The fluorescence of crude oils is due to the ... -
Measuring the micro-polarity and hydrogen-bond donor/acceptor ability of thermoresponsive N-isopropylacrylamide/N-tert-butylacrylamide copolymer films using solvatochromic indicators
Szczupak, Boguslaw; Ryder, Alan G.; Togashi, Denisio M.; Rochev, Yuri A.; Glynn, Thomas J. (application/pdf, 2009)Thin polymer films are important in many areas of biomaterials research, biomedical devices, and biological sensors. The accurate in situ measurement of multiple physicochemical properties of thin polymer films is critical ... -
Measuring the Micro-Polarity and Hydrogen-Bond Donor/Acceptor Ability of Thermoresponsive N-Isopropylacrylamide/N-tert-Butylacrylamide Copolymer Films Using Solvatochromic Indicators
Ryder, Alan G.; Szczupak, Boguslaw; Togashi, Denisio M.; Rochev, Yuri A.; Glynn, Thomas J. (2009)Thin polymer films are important in many areas of biomaterials research, biomedical devices, and biological sensors. The accurate in situ measurement of multiple physicochemical properties of thin polymer films is critical ... -
Quantitative analysis of cocaine in solid mixtures using Raman spectroscopy and chemometric methods
Ryder, Alan G.; O'Connor, Gerard M.; Glynn, Thomas J. (Wiley, 2000-04-27)Near-infrared (785 mn) excitation was used to obtain Raman spectra from a series of 33 solid mixtures containing cocaine, caffeine and glucose (9.8-80.6% by weight cocaine), which were then analysed using chemometric ... -
Time-domain measurement of fluorescence lifetime variation with pH
Ryder, Alan G.; Morrison, John J.; Power, Sarah; Glynn, Thomas J. (Society of Photo-optical Instrumentation Engineers, 2001)Advances in the design and miniaturization of the lasers and electronics required for Time Correlated Single Photon Counting (TCSPC) measurement of fluorescence lifetime have simplified the use of the time domain method. ... -
Time-resolved fluorescence microspectroscopy for characterizing crude oils in bulk and hydrocarbon bearing fluid inclusions.
Ryder, Alan G.; Przyjalgowski, Milosz A.; Feely, Martin; Szczupak, Boguslaw; Glynn, Thomas J. (Ingenta, 2004)Time-resolved fluorescence data was collected from a series of 23 bulk crude petroleum oils and six microscopic hydrocarbon-bearing fluid inclusions (HCFI). The data was collected using a diode laser fluorescence lifetime ...