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Journal Highlight: GC-MS metabolomics-based approach for the identification of a potential VOC-biomarker panel in the urine of renal cell carcinoma patients

Date: Oct 16, 2017

Author: separationsNOW

The urinary volatile metabolic profile of patients with renal cell carcinoma was studied by GC/MS to identify a potential specific volatile pattern as a non-invasive strategy to detect the disease.

Read More thumbnail image: Journal Highlight GC-MS metabolomics-based approach for the identification of a potential VOC-biomarker panel in the urine of renal cell carcinoma patients

Hydrogen helps hurry harmful dioxins through GC

Date: Oct 15, 2017

Author: Ryan De Vooght-Johnson

Polychlorodibenzo-p-dioxins (PCDDs) and the related polychlorodibenzofurans (PCDFs) are toxic, persistent organic pollutants, but the current official separation methods for the various congeners are lengthy. Scientists from the Institute of Atmospheric Pollution Research in Rome developed a new GC-MS/MS method using hydrogen as the carrier gas rather than helium.

Read More thumbnail image: Hydrogen helps hurry harmful dioxins through GC

Opioids assayed by GC after extraction by SPE

Date: Oct 1, 2017

Author: Ryan De Vooght-Johnson

Opioid pharmaceuticals can have serious side-effects, such as irregular heart rhythms, so it is necessary to be able to measure their concentrations in the blood. Scientists from the University of Buenos Aires used solid-phase extraction, together with GC-MS with selected ion monitoring (SIM), to measure the levels of three synthetic opioids and two of their metabolites.

Read More thumbnail image: Opioids assayed by GC after extraction by SPE

Mosquito killer quantification achieved with negative chemical ionisation

Date: Sep 18, 2017

Author: Ryan De Vooght-Johnson

Transfluthrin is a synthetic pyrethroid insecticide, commonly used in indoor settings to control a variety of pests, but there is some concern about its possible toxicological effects. Scientists from the University of Georgia have developed a novel method of determining transfluthrin levels in rat plasma and brain tissue using GC-MS with negative chemical ionisation.

Read More thumbnail image: Mosquito killer quantification achieved with negative chemical ionisation

Journal Highlight: Oxidative stress in asthmatic and non-asthmatic adolescent swimmers — A breathomics approach

Date: Sep 18, 2017

Author: separationsNOW

The effect of a swimming training session on oxidative stress markers of asthmatic compared to non-asthmatic elite swimmers using exhaled breath metabolomics has been investigated by GC×GC-ToFMS.

Read More thumbnail image: Journal Highlight Oxidative stress in asthmatic and non-asthmatic adolescent swimmers  A breathomics approach

Zombie drug identification solved by cold ionisation

Date: Sep 6, 2017

Author: Ryan De Vooght-Johnson

Regulatory agencies are faced with an ever-increasing number of synthetic cannabinoids, many of which are structurally similar to one another, making their identification a challenge. Scientists from the Hebrew University of Jerusalem and the Division of Identification and Forensic Science of the Israeli police have developed a cold electron ionisation (EI) method to give improved differentiation in the GC-MS of synthetic cannabinoids.

Read More thumbnail image: Zombie drug identification solved by cold ionisation

Fast GC’s rapidity gives greater productivity

Date: Aug 15, 2017

Author: Ryan De Vooght-Johnson

GC-MS run times can now be much shorter than with traditional methods due to a number of recent developments. Scientists from Tel Aviv University applied a combination of open probe fast GC and mass spectrometry to obtain rapid results from a wide variety of different analytes.

Read More thumbnail image: Fast GCs rapidity gives greater productivity

Journal Highlight: Characterization of odorous contaminants in post-consumer plastic packaging waste using multidimensional gas chromatographic separation coupled with olfactometric resolution

Date: Aug 14, 2017

Author: separationsNOW

Post-consumer food packaging waste has been characterized by sensory analysis and 2D high resolution gas chromatography coupled with mass spectrometry and olfactometry to help produce odour-free recyclates.

Read More thumbnail image: Journal Highlight Characterization of odorous contaminants in post-consumer plastic packaging waste using multidimensional gas chromatographic separation coupled with olfactometric resolution

Orbitrap defeats the athletes who cheat

Date: Aug 1, 2017

Author: Ryan De Vooght-Johnson

Detection of the increasing number of compounds used as doping agents by sport competitors represents a significant challenge. Scientists from the Brazilian Doping Control Laboratory at the Federal University of Rio de Janeiro and Thermo Fisher Scientific (Austin, Texas) have developed a new Orbitrap GC-MS method for detecting a variety of doping compounds.

Read More thumbnail image: Orbitrap defeats the athletes who cheat

Journal Highlight: Employing two-stage derivatisation and GC–MS to assay for cathine and related stimulant alkaloids across the Celastraceae

Date: Jul 17, 2017

Author: separationsNOW

A GC/MS analysis of cathine and related stimulants in 43 Celastraceae species has shown that cathine is unique to Catha edulis, and is not responsible for the stimulant properties reported in related Celastraceae species

Read More thumbnail image: Journal Highlight Employing two-stage derivatisation and GCMS to assay for cathine and related stimulant alkaloids across the Celastraceae
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