Gas chromatography with mass spectrometric detectors are used to separate different analytes present in a mixture and identify the same. It can also be for quantification of analytes. Sample preparation is essential GC-MS analysis obtain desired Aim study: The study pursued profile phytochemicals Arjunarishta, medicated alcoholic through Dichloromethane (DCM) Ethyl acetate (EA). Materials Metho...

This study evaluates changes in metabolite levels in hepatocellular carcinoma (HCC) cases vs. patients with liver cirrhosis by analysis of human blood plasma using gas chromatography coupled with mass spectrometry (GC-MS). Untargeted metabolomic analysis of plasma samples from participants recruited in Egypt was performed using two GC-MS platforms: a GC coupled to single quadruple mass spectrom...

This work presents the validation study of comprehensive two-dimensional gas chromatography-time of flight mass spectrometry (GC×GC-TOFMS) method performance in analysis of the key WADA anabolic agents in doping control. The relative abundance ratio, retention time, identification and other method performance criteria have been tested in the GC×GC format to confirm if they comply with those set...

Our understanding of formation processes, physical properties, and climate/health effects of organic aerosols is still limited in part due to limited knowledge of organic aerosol composition. We present speciated measurements of organic aerosol composition by two methods: in situ thermaldesorption proton-transfer-reaction mass spectrometry (TDPTR-MS) and offline two-dimensional gas chromatograp...

The essential oil in leaves of Polygonum minus Huds., a local aromatic plant, were identified by a pipeline of gas chromatography (GC) techniques coupled with mass-spectrometry (MS), flame ionization detector (FID) and two dimensional gas chromatography time of flight mass spectrometry (GC x GC-TOF MS). A total of 48 compounds with a good match and high probability values were identified using ...

In the past two decades, comprehensive two-dimensional gas chromatography (GC×GC) has progressed from an interesting concept to forefront of thinking and research in chromatography. Especially when combined with mass spectrometry detection, GC×GC provides high resolution, sensitivity, massive chromatographic data sets, which is useful diverse fields such as petroleum analysis, metabolomics, foo...