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What’s in my tea? See the GC

Date: Jul 16, 2019

Author: Ryan De Vooght-Johnson

A wide variety of pesticides can be used on tea plants or the harvested leaves, and the measurement of the multiple residues that may be present is challenging. Scientists from the Chinese Academy of Inspection and Quarantine and Agilent Technologies (both Beijing) developed a new method for the analysis of 184 pesticides in tea using GC coupled with time-of-flight mass spectrometry.

Read More thumbnail image: Whats in my tea See the GC

Magnetic attraction of filter paper: A novel material for magnetic solid phase extraction

Date: Jul 15, 2019

Author: Jon Evans

Chinese scientists have developed a one-step process for converting filter paper into a magnetic, porous, carbon-based material for conducting magnetic solid-phase extraction.

Read More thumbnail image: Magnetic attraction of filter paper A novel material for magnetic solid phase extraction

What’s your tipple? A CE method for determining ethanol concentrations in alcoholic drinks

Date: Jul 15, 2019

Author: Jon Evans

By utilizing hydrogen peroxide and indirect UV detection, chemists from the US and Brazil have managed to come up with a capillary electrophoresis method for determining ethanol concentrations in alcoholic drinks.

Read More thumbnail image: Whats your tipple A CE method for determining ethanol concentrations in alcoholic drinks

A cone for summer: Combining LIF detection with ESI-MS

Date: Jul 15, 2019

Author: Jon Evans

Hungarian researchers have a found a novel way to combine LIF detection and ESI-MS with capillary electrophoresis, by conducting LIF detection on the Taylor cone formed during ESI.

Read More thumbnail image: A cone for summer Combining LIF detection with ESI-MS

Chromatography captures active coffee compounds

Date: Jul 11, 2019

Author: Ryan De Vooght-Johnson

The possible health benefits and/or risks of coffee drinking have long been a subject for research, but current analytical methods are not generally capable of measuring all the compounds of interest. A new HPLC method has been developed for coffee which separates two compounds of interest for their anti-inflammatory properties, javamide I and javamide II, along with caffeine and three isomeric caffeoylquinic acids.

Read More thumbnail image: Chromatography captures active coffee compounds

Journal Highlight: Determination of decomposition in salmon products by mass spectrometry with sensory‐driven multivariate analysis

Date: Jul 9, 2019

Author: separationsNOW

A novel method to determine the decomposition status of seafood samples was explored using LC‐HRMS with untargeted analysis and a statistical model driven by sensory results via a script written in the R programming language.

Read More thumbnail image: Journal Highlight Determination of decomposition in salmon products by mass spectrometry with sensorydriven multivariate analysis

A bit of light pressure: Separating particles with optical chromatography

Date: Jul 8, 2019

Author: Jon Evans

Using an LED and an array of nanoholes, a team of scientists from the US and Turkey have developed a simplified version of optical chromatography that can be conducted on a microchip.

Read More thumbnail image: A bit of light pressure Separating particles with optical chromatography

Journal Highlight: At‐line multi‐angle light scattering detector for faster process development in enveloped virus‐like particle purification

Date: Jul 8, 2019

Author: separationsNOW

Scientists in Austria and Spain have shown that multi‐angle light scattering and fluorescence detectors, together with size-exclusion chromatography, can be used for the direct in‐process tracking of fluorescent virus‐like particles.

Read More thumbnail image: Journal Highlight Atline multiangle light scattering detector for faster process development in enveloped viruslike particle purification

Journal Highlight: Association of acute Babesia canis infection and serum lipid, lipoprotein, and apoprotein concentrations in dogs

Date: Jul 8, 2019

Author: separationsNOW

Researchers from Serbia and the US used gel electrophoresis to study the lipoproteins in dogs infected with the parasite Babesia canis.

Read More thumbnail image: Journal Highlight Association of acute Babesia canis infection and serum lipid lipoprotein and apoprotein concentrations in dogs

Journal Highlight: Development of a headspace SPME-GC-MS method to study volatile organic compounds emitted by lavender roots

Date: Jul 8, 2019

Author: separationsNOW

French scientists have developed a headspace solid‐phase microextraction method for extracting volatile organic compounds from the roots of lavandin and fine lavender plants.

Read More thumbnail image: Journal Highlight Development of a headspace SPME-GC-MS method to study volatile organic compounds emitted by lavender roots
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