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Influence of chemical composition on the fluorescence lifetimes of crude petroleum oils
(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 ...
Low-content quantification in powders using Raman spectroscopy: a facile chemometric approach to sub 0.1% limits of detection.
(American Chemical Society, 2015-02-23)
A robust and accurate analytical methodology for low-content (<0.1%) quantification in the
solid-state using Raman spectroscopy, sub-sampling, and chemometrics was demonstrated using
a piracetam–proline model. The method ...
A comprehensive iso-octane combustion model with improved thermochemistry and chemical kinetics
(Elsevier, 2017-02-05)
Iso-Octane (2,2,4-trimethylpentane) is a primary reference fuel and an important component of gasoline fuels. Moreover, it is a key component used in surrogates to study the ignition and burning characteristics of gasoline ...
Assessing the predictions of a NOx kinetic mechanism on recent hydrogen and syngas experimental data
(Elsevier, 2017-05-02)
A detailed chemical kinetic mechanism has been developed to describe the pyrolysis and oxidation of the hydrogen/NOx and syngas/NOx systems. The thermodynamic data of nitrogenous compounds have been updated based on the ...
An experimental and modelling study of n-pentane oxidation in two jet-stirred reactors: The importance of pressure-dependent kinetics and new reaction pathways
(Elsevier, 2016-06-16)
Two jet-stirred reactors (JSRs) coupled to gas chromatographic and spectroscopic techniques have been utilised to detect chemical species evolved during n -pentane oxidation at 1 and 10 atm, in the temperature range 500-1100 ...
Planar [Ni-7] discs as double-bowl, pseudo metallacalix[6]arene host cavities
(RSC, 2010-09-19)
We report three heptanuclear[Ni-7] complexes with planar disc-like cores, akin to double-bowl metallocalix[6]arenes, which form molecular H-bonded host cavities.
Syntheses of C-substituted icosahedral dicarbaboranes bearing the 8-dioxane-cobalt bisdicarbollide moiety
(Elsevier, 2009-11-20)
The treatment of 1,2-, 1,7- and 1,12-carbaborane lithiated isomers with [3,3′-Co-8-(CH2CH2O)2-(1,2-C2B9H10)-(1′,2′-C2B9H11)] (1) at molar ratios 1:1 or 1:2 at room temperature in THF leads generally to the formation of a ...
Effect of surface chemistry on islet amyloid polypeptide conformation
(American Institute of Physics, 2020-09-04)
The formation of dense, linear arrays (fibrils) by biomolecules is the hallmark of a number of degenerative diseases, such as Alzheimer s and type-2 diabetes. Protein fibrils have also attracted interest as building blocks ...
Metallacarboranes as building blocks for polyanionic polyarmed aryl-ether materials
(American Chemical Society, 2008-09-20)
Polyanionic species have been obtained in high yield by a new route in the ring-opening reaction of cyclic oxonium [3,3′-Co(8-C4H8O2-1,2-C2B9H10)(1′,2′-C2B9H11)] (2) by using carboxylic acids, Grignard reagents, and ...
Low Temperature Fluorescence Studies of Crude Petroleum Oils
(2011)
We have studied the low-temperature (133-298 K) fluorescence emission of crude petroleum oils using a combination of steady-state and time-resolved measurements. This was done, first, to see if we could generate linear ...