| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Myers, Matt
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2017The Effect of Pressure and Temperature on Mid-Infrared Sensing of Dissolved Hydrocarbons in Watercitations
- 2017Calixarene-Polymer Hybrid Film for the Selective Detection of Hydrocarbons in Watercitations
- 2014A mid-infrared sensor for the determination of perfluorocarbon-based compounds in aquatic systems for geosequestration purposescitations
- 2013Direct quantification of aromatic hydrocarbons in geochemical fluids with a mid-infrared attenuated total reflection sensorcitations
- 2012Using Plasticizers to Control the Hydrocarbon Selectivity of a Poly(Methyl Methacrylate)-Coated Quartz Crystal Microbalance Sensorcitations
- 2010The Effect of Water Uptake on the Response of a Polymer Based QCM Sensor for Hydrocarbons
Places of action
| Organizations | Location | People |
|---|
article
Direct quantification of aromatic hydrocarbons in geochemical fluids with a mid-infrared attenuated total reflection sensor
Abstract
An improved analytical method for directly and rapidly quantifying various monocyclic and polycyclic aromatic molecules in geochemical fluids has been developed. This study reports on the application of a sensor based on attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) for determining the concentration of a number of volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs). The sensor consists of a zinc selenide (ZnSe) waveguide with the surface modified by a thin poly(isobutylene) (PIB) coating. The sensitivity was investigated at different polymer film thicknesses and molecular weights. The analytical performance of the ATR-FTIR sensor was validated in the laboratory against a standard analytical technique for analyzing petroleum-based samples (i.e., GC-MS and GC-FID). We have shown that the sensor may accurately quantify the benzene, toluene, ethylbenzene, xylenes and naphthalene (BTEXN) concentration in an oil-water mixture. The ATR-FTIR method overcomes the limitations associated with sampling/sample preparation and has the advantage that it may easily discriminate between meta and para-xylene, which is difficult with conventional analytical techniques. In addition, this technology may potentially be deployed in the field for geochemical mapping and to monitor in situ the concentration profile of a number of hydrocarbons in the geological formations (e.g. petroleum systems), as demonstrated for a first miniaturized prototype of an ATR-IR sensor system taking advantage of planar-tapered silver halide fibers.