Evaluating Carbon-Centric GC Detectors for VOC Analysis
On Wednesday, January 17, Francois Huby of The Dow Chemical Company will present a talk titled “Comparative Evaluation of ‘Carbon Centric’ Gas Chromatography Detectors for Volatile Organic Compounds Analysis.” The presentation is scheduled to take place at 10:55 a.m. in Room 372 D.
On Wednesday, January 17, Francois Huby of The Dow Chemical Company will present a talk titled “Comparative Evaluation of ‘Carbon Centric’ Gas Chromatography Detectors for Volatile Organic Compounds Analysis.” The presentation is scheduled to take place at 10:55 a.m. in Room 372 D.
According to Huby, volatile organic compound (VOC) analysis currently is performed using gas chromatography (GC), and the most common detection methods are flame Ionization detection (FID) and mass spectrometry (MS). Both detection methods require calibration using analytical standard solutions at known concentrations of each detected compound. For complex samples, the preparation of standard solutions, calibration of the chromatographic system, and analysis of the chromatographic data can be time consuming and costly. Carbon-centric detectors directly measure the mass of carbon corresponding to each chromatographic peak. Knowledge of the eluted compounds’ chemical nature, possibly obtained by using a spectroscopic detector, enables a direct unbiased estimation of the mass of the compounds eluted from the column. In addition to delivering accurate VOC levels, such detectors also simplify both the calibration of the system and the data reduction step of the analysis. In this presentation, Huby will compare several carbon-centric detectors in terms of performance, ease of use, and cost.
Obtaining Allicin from Garlic with High-Speed Counter Current Chromatography
February 14th 2025High-speed counter current chromatography (HSCCC), an advanced liquid-liquid chromatography technique employing both a liquid stationary phase and a liquid mobile phase (effectively eliminating irreversible adsorption), was used to harvest allicin from garlic.
The Next Frontier for Mass Spectrometry: Maximizing Ion Utilization
January 20th 2025In this podcast, Daniel DeBord, CTO of MOBILion Systems, describes a new high resolution mass spectrometry approach that promises to increase speed and sensitivity in omics applications. MOBILion recently introduced the PAMAF mode of operation, which stands for parallel accumulation with mobility aligned fragmentation. It substantially increases the fraction of ions used for mass spectrometry analysis by replacing the functionality of the quadrupole with high resolution ion mobility. Listen to learn more about this exciting new development.
Identifying Microplastics in Tap Water with Py-GC/MS
February 12th 2025A pyrolysis gas chromatography-mass spectrometry (Py-GC/MS) methodology has been specifically developed for the identification and quantification of seven polymers commonly found in tap water. The researchers responsible for the approach state that it prioritizes both time and cost efficiency without compromising the thoroughness of marker spectrum detection and confirmation.
