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Synthetic Psychoactive Substances Sorted by LC-MS

Date: Jul 1, 2017

Author: Ryan De Vooght-Johnson

Large numbers of new psychoactive substances (NPS) are produced and sold on the internet every year, providing a challenge for law enforcement agencies. Scientists from the Karolinska Institute and the Karolinska University Laboratory (both in Stockholm) have developed a liquid chromatography-high resolution mass spectrometry method (LC-HRMS) to detect a wide range of such substances, together with legal psychoactive pharmaceuticals and naturally occurring alkaloids.

Read More thumbnail image: Synthetic Psychoactive Substances Sorted by LC-MS

E-liquids’ hidden alcohol revealed by GC protocol

Date: Jul 1, 2017

Author: Ryan De Vooght-Johnson

E-cigarettes are increasingly popular, but doubts remain about their safety and the appropriate level of regulation. Scientists from the Virginia Commonwealth University in Richmond investigated the amount of ethanol in e-liquids by GC with headspace analysis, finding relatively high levels in a number of brands.

Read More thumbnail image: E-liquids hidden alcohol revealed by GC protocol

Answering Life's Questions with Spectroscopy

Date: Jun 28, 2017

Author: Jon Evans

Spectroscopy has been a common analytical technique in laboratories for many years. Recently, however, it has begun to emerge from the laboratory, both figuratively and literally, as more and more researchers discover that it is ideally placed to answer the questions they want to ask.

Read More thumbnail image: Answering Lifes Questions with Spectroscopy

Journal Highlight: Metabolomic analyses of the haemolymph of the Asian citrus psyllid Diaphorina citri, the vector of huanglongbing

Date: Jun 26, 2017

Author: separationsNOW

Scientists in the US have used gas chromatography and anion-exchange chromatography to analyze the chemical composition of the insect circulatory fluid known as haemolymph in the Asian citrus psyllid, a major insect pest of citrus plants.

Read More thumbnail image: Journal Highlight Metabolomic analyses of the haemolymph of the Asian citrus psyllid Diaphorina citri the vector of huanglongbing

Journal Highlight: Separation of cucurbitane triterpenoids from bitter melon drinks and determination of partition coefficients using vortex-assisted dispersive LPME followed by UHPLC analysis

Date: Jun 26, 2017

Author: separationsNOW

Researchers in the US and China have developed a novel vortex-assisted liquid–liquid microextraction method for extracting cucurbitane triterpenoids from bitter melon juices.

Read More thumbnail image: Journal Highlight Separation of cucurbitane triterpenoids from bitter melon drinks and determination of partition coefficients using vortex-assisted dispersive LPME followed by UHPLC analysis

Journal Highlight: The effect of ageing on changes in myofibrillar protein in selected muscles in relation to the tenderness of meat obtained from cross-breed heifers

Date: Jun 26, 2017

Author: separationsNOW

Polish food scientists have used gel electrophoresis and Western blotting to investogate the effects of aging on selected myofibrillar proteins in meat from cows.

Read More thumbnail image: Journal Highlight The effect of ageing on changes in myofibrillar protein in selected muscles in relation to the tenderness of meat obtained from cross-breed heifers

SERS goes down the tubes: Combining LC with surface-enhanced Raman spectroscopy

Date: Jun 19, 2017

Author: Jon Evans

Using tubes and droplets, British scientists have come up with a novel method for combining liquid chromatography with surface-enhanced Raman spectroscopy.

Read More thumbnail image: SERS goes down the tubes Combining LC with surface-enhanced Raman spectroscopy

Espresso extraction: Treat yourself to a tasty new extraction method

Date: Jun 19, 2017

Author: Jon Evans

In the search for faster, cheaper, greener extraction methods, Spanish scientists have discovered that there’s nothing quite like a good cup of espresso.

Read More thumbnail image: Espresso extraction Treat yourself to a tasty new extraction method

Journal Highlight: Quantitative method for analysis of tobacco-specific N-nitrosamines in mainstream cigarette smoke by using heart-cutting 2D LC with tandem MS

Date: Jun 19, 2017

Author: separationsNOW

A heart-cutting 2D-LC/MS/MS method developed for the analysis of tobacco-specific N-nitrosamines at low concentrations in Virginia-type cigarette smoke produced almost no matrix interference compared with traditional methodologies.

Read More thumbnail image: Journal Highlight Quantitative method for analysis of tobacco-specific N-nitrosamines in mainstream cigarette smoke by using heart-cutting 2D LC with tandem MS

Winding path to DNA electrophoresis: A novel form of pulsed field gel electrophoresis

Date: Jun 19, 2017

Author: Jon Evans

A novel form of pulsed field gel electrophoresis that can continuously and speedily separate small strands of DNA could form the basis for new genetic sequencing and medical diagnosis devices.

Read More thumbnail image: Winding path to DNA electrophoresis A novel form of pulsed field gel electrophoresis
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