GC-MS

October 13th 2017

At the September 27, 2017, meeting of the New York–New Jersey chapter of the Society for Applied Spectroscopy, Gene Hall, a professor of analytical chemistry at Rutgers, the State University of New Jersey, shared some of his recent work using Raman spectroscopy, mid-infrared (IR) spectroscopy, and gas chromatography–time-of-flight mass spectrometry (GC–TOF-MS) to analyze omega-3 fatty acid supplements marketed for pets.

July 1st 2017

In this study, general extract screening of food storage materials was done with nontargeted analytical methods to understand what analytes could potentially leach into food or beverages. GC and mass spectral deconvolution effectively separated analytes within the complex mixture and TOF-MS provided full mass range spectral data for identification. This workflow can be used for confident characterization of components present as extractables from food packaging materials.

July 1st 2017

Interest in connecting ion mobility spectrometry (IMS) to GC and especially to LC is now growing. One favorable property of IMS is that it can work with ambient pressure and can be easily connected to a gas or liquid chromatograph. Analytical applications of GC–MS and LC–MS are very different and encompass investigations into food, medical science, environment, drugs of abuse, chemical warfare agents, and explosives.

May 2nd 2017

Headspace SPME combined with GC–MS for the qualitative and quantitative analysis of terpenes in cannabis offers several advantages compared to other methods. It does not require the use of organic solvents, does not coextract matrix, and provides additional means of peak identification and purity using spectral data. It is also a nondestructive method.