Graduate Student Sally Abskhroun in the Chemistry and Biochemistry Department here at Clarkson University will present about Comprehensive Analysis for Novel Anthropogenic Organic Contaminants in Various Environmental Matrices:
Abstract: There are very few studies that have attempted to identify all the anthropogenic pollutants present in a given sample due to the large number of potential contaminants and the complexity of the sample matrix. Such data however are vital for assessing exposure pathways and associated human risks. Volatile and semi-volatile organic contaminants (VOCs and SVOCs) are of special interest due to their ability for long-range transport, bioaccumulation and cause serious health risks including carcinogenicity, endocrine disruption, and respiratory issues. Addressing this knowledge gap requires comprehensive analysis methods that can identify a wide range of VOCs and SVOCs in environmental samples. This study aims to develop advanced non-targeted analysis (NTA) methods using comprehensive two-dimensional gas chromatography (GC×GC) with high-resolution mass spectrometry (HRMS) to identify novel VOCs and SVOCs with potential adverse effects to human and the ecosystem. The first method will enhance the detection of halogenated contaminants by integrating electron capture chemical ionization (ECNI) with electron impact ionization (EI), while the second method will use EI data cross-referenced with the extensive NIST mass spectral library to identify non-halogenated compounds. The outcomes of this study could enhance environmental monitoring by enabling the detection of previously unknown pollutants, thereby enhancing risk assessment and protecting public health. These findings will support regulatory frameworks in addressing unregulated chemicals and inform strategies for environmental management.
Friday, November 22nd, 2024, 3:30 PM, BH Snell Hall 214
Zoom Information: Link
Meeting ID: 950 1099 7564
Passcode: chemistry