A5022789114- Analytical Chemistry and Chromatography
- Spectroscopy and Chemometric Analyses
- Biodiesel Production and Applications
- Various Chemistry Research Topics
- Crystallization and Solubility Studies
- Thermodynamic properties of mixtures
- Microfluidic and Capillary Electrophoresis Applications
- Advanced Chemical Sensor Technologies
- Mass Spectrometry Techniques and Applications
- Diverse Educational Innovations Studies
- Chemical Thermodynamics and Molecular Structure
- Phase Equilibria and Thermodynamics
- Petroleum Processing and Analysis
- Diverse Education and Engineering Focus
- Chromatography in Natural Products
- Metabolomics and Mass Spectrometry Studies
- Career Development and Diversity
- Science Education and Pedagogy
- Enzyme Catalysis and Immobilization
- Electrowetting and Microfluidic Technologies
- Education and Critical Thinking Development
College of the Holy Cross
2013-2024
Michigan State University
2007-2010
In this paper, a problem set activity focused on understanding and applying unsupervised supervised chemometric methods for the analysis of biodiesel–diesel blended fuels is described. This was utilized in two upper-level analytical elective courses aimed junior senior level students. The data consists peak areas taken from gas chromatograms comprising various biodiesel concentrations feedstock types. Students are tasked with analyzing using principal component (PCA), hierarchical cluster...
Abstract Various biodiesel feedstocks were evaluated using gas chromatography–mass spectrometry data combined with unsupervised chemometric methods of analysis. Peak areas the fatty acid methyl esters (FAMEs) present in (soybean oil, canola waste grease, animal tallow, etc.) utilized. The importance chromatographic parameters, such as temperature program and column polarity, was examined respect to clustering that observed principal component analysis (PCA) hierarchical cluster (HCA)....
Creative activities designed for a nonscience-majors undergraduate chemistry course are described. Course topics were chosen in an effort to promote student interest, yet provide means address chemical concepts. Fundamental principles presented the context of atmospheric pollution, ozone layer, global climate change, and acid rain. Activities accommodate diverse backgrounds. included attendance at seminars on-campus events, discussion current news creation children's book, development...
We present a methodology for optimization of chromatogram alignment using class separability measure called the Hotelling trace criterion (HTC). This metric is multi‐class distance that accounts within‐class and between‐class variation. chose correlation optimized warping algorithm as our method used HTC to judge effectiveness based on parameters segment length max warp. Biodiesel feedstock samples representing classes soy, canola, tallow, waste grease, hybrid were in experiments. Fatty acid...
In this work, a statistical metric called the Mahalanobis distance (MD) is used to compare gas chromatography separation conditions. two-sample case, MD computes between means of multivariate probability distributions two groups. Two columns same polarity but differing length and film thickness were utilized for analysis fatty acid methyl esters in biodiesel fuels. Biodiesel feedstock samples representing classes canola, coconut, flaxseed, palm kernal, safflower, soy, soyabean, sunflower,...
In this research, experimental data are used to evaluate theoretical methods that provide detailed information concerning mass transfer processes in liquid chromatography. To end, a well-characterized homologous series of fatty acids is separated on polymeric octadecyl silica stationary phase with methanol mobile phase. These solutes detected via laser-induced fluorescence generate characteristic zone profiles as function column length and linear velocity. Three then applied extract the...