Analysis of Sulfur Compounds Using a Water Stationary Phase in Gas Chromatography with Flame Photometric Detection

Thurbide, Kevin; McKelvie, Kaylan

Analysis of Sulfur Compounds Using a Water Stationary Phase in Gas Chromatography with Flame Photometric Detection

dc.contributor.author	Thurbide, Kevin
dc.contributor.author	McKelvie, Kaylan
dc.date.accessioned	2017-01-24T00:55:30Z
dc.date.available	2017-01-24T00:55:30Z
dc.date.issued	2017-01-20
dc.description.abstract	The properties of using a water stationary phase for analyzing organic sulfur compounds in capillary gas chromatography (GC) with a flame photometric detector (FPD) are presented. The water phase was not found to hinder FPD performance, which provided a detection limit near 30 pgS/s and excellent selectivity for sulfur over carbon. Several different organosulfur compounds were examined and found to be retained to varying degrees on the phase. In many cases, analyte water solubility and polarity appeared to correlate well with retention, whereas analyte volatility did not. By comparison, non-polar hydrocarbons were generally unretained in the system. This prevented their co-elution with sulfur analytes and the response quenching that is often observed in conventional GC-FPD. Of note, when a gasoline sample was analyzed on a standard DB-1 column, the response of the sulfur analytes present was found to be quenched by about 50% due to the overlapping hydrocarbon species also present. However, the same sample analyzed on the water stationary phase displayed no response quenching. Additionally, it was found that sulfur compounds present in different aqueous matrices such as wine, milk, and urine could also be readily and directly analyzed without interference, since many of the large hydrophilic matrix components present are often fully retained on the phase. Results indicate that this method can provide a useful alternative for the analysis of organosulfur compounds in complex matrices.
dc.description.refereed	Yes	en_US
dc.identifier.citation	Analytical Methods, 2017, DOI: 10.1039/C6AY03017C	en_US
dc.identifier.doi	http://dx.doi.org/10.11575/PRISM/35416
dc.identifier.uri	http://hdl.handle.net/1880/51793
dc.language.iso	en	en_US
dc.publisher	Analytical Methods	en_US
dc.publisher.faculty	Science	en_US
dc.publisher.institution	University of Calgary	en_US
dc.publisher.url	http://pubs.rsc.org/en/content/articlepdf/2014/AY/C6AY03017C?page=search	en_US
dc.title	Analysis of Sulfur Compounds Using a Water Stationary Phase in Gas Chromatography with Flame Photometric Detection	en_US
dc.type	unknown
thesis.degree.discipline	Chemistry	en_US