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dc.contributor Dixon, Roy W. en_US
dc.contributor.advisor Miller-Schulze, Justin P. en_US
dc.contributor.author Voss, Stefan Andreas
dc.date.accessioned 2019-10-01T22:31:50Z
dc.date.available 2019-10-01T22:31:50Z
dc.date.issued 2019-10-01
dc.date.submitted 2019-07-31
dc.identifier.uri http://hdl.handle.net/10211.3/213484
dc.description Thesis (M.S., Chemistry)--California State University, Sacramento, 2019. en_US
dc.description.abstract Sucralose is an increasingly popular artificial sweetener and has been found in the environment in groundwater, surface water, and wastewater treatment plant effluent. Its chemical properties make it strongly recalcitrant in the environment and it has been used as a conservative tracer of human wastewater in recent years. Most current methods of sucralose analysis use high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) instrumentation. In this study, an analytical method using silylation derivatization and gas chromatography mass spectrometry (GC-MS) for the quantification of sucralose in groundwater samples is presented. This method employs a deuterium-labeled internal standard to account for reaction and sample processing imprecision. A previously developed GC-MS method with derivatization of sucralose in environmental samples did not employ an internal standard for quantification. As such, this method represents a more robust methodological approach for sucralose quantification in environmental samples. The method detection limit based on a set of 17 method blanks was calculated to be 21.8 ng/L, which is competitive with most methods in the published literature and sufficient to detect sucralose in water with ~0.1% wastewater contribution. The method was applied to 37 groundwater samples from drinking water wells in California’s Central Valley, in which five samples (13.5%) were found to contain sucralose at concentrations greater than the 21.8 ng/L detection limit. en_US
dc.description.sponsorship Chemistry en_US
dc.language.iso en_US en_US
dc.subject Sucralose en_US
dc.subject Analytical chemistry en_US
dc.subject Environmental chemistry en_US
dc.title Method development for sucralose in Central Valley California water supply via gas chromatography-mass spectrometry en_US
dc.type Masters thesis en_US

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