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Milky goodness: A novel method for extracting phytoestrogens from milk

Date: May 20, 2019

Author: Jon Evans

Italian chemists have developed a novel method for extracting and modifying phytoestrogens from both mammalian and vegetable milks for analysis by gas chromatography-mass spectrometry.

Read More thumbnail image: Milky goodness A novel method for extracting phytoestrogens from milk

Journal Highlight: Preparative isolation of caffeoylquinic acid isomers from Kuding tea by salt‐containing aqueous two‐phase extraction and purification by high‐speed countercurrent chromatography

Date: May 13, 2019

Author: separationsNOW

Chinese scientists used a salt‐containing aqueous two‐phase extraction method to derive and concentrate caffeoylquinic acid and its derivatives from a form of Chinese tea known as Kuding.

Read More thumbnail image: Journal Highlight Preparative isolation of caffeoylquinic acid isomers from Kuding tea by saltcontaining aqueous twophase extraction and purification by highspeed countercurrent chromatography

Journal Highlight: Development and comparison of LLE and accelerated solvent extraction methods for quantitative analysis of chloramphenicol, thiamphenicol, florfenicol and florfenicol amine in poultry eggs

Date: Apr 22, 2019

Author: separationsNOW

Chinese scientists have compared the abilities of liquid-liquid extraction and accelerated solvent extraction for the quantitative analysis of the antibiotics chloramphenicol, thiamphenicol, florfenicol and florfenicol amine in poultry eggs.

Read More thumbnail image: Journal Highlight Development and comparison of LLE and accelerated solvent extraction methods for quantitative analysis of chloramphenicol thiamphenicol florfenicol and florfenicol amine in poultry eggs

Brain extraction: A novel method for extracting neurotransmitters from live brains

Date: Apr 15, 2019

Author: Jon Evans

By taking advantage of solid-phase microextraction, Canadian chemists have found a way to extract neurotransmitters from the brain of a live monkey as non-invasively as possible.

Read More thumbnail image: Brain extraction A novel method for extracting neurotransmitters from live brains

Journal Highlight: Analysis of volatile compounds in pork from four different pig breeds using headspace SPME/GC–MS

Date: Apr 8, 2019

Author: separationsNOW

A team of Chinese scientists used solid‐phase microextraction to capture volatile compounds from the pork meats of four different pig breeds, in order to determine how the compounds contribute to the flavor of pork.

Read More thumbnail image: Journal Highlight Analysis of volatile compounds in pork from four different pig breeds using headspace SPMEGCMS

Journal Highlight: An in‐needle SPME device packed with etched steel wires for polycyclic aromatic hydrocarbons enrichment in water samples

Date: Mar 25, 2019

Author: separationsNOW

Chinese scientists have developed a novel, low‐cost and effective in‐needle solid phase micro‐extraction device for extracting and concentrating trace polycyclic aromatic hydrocarbons in water samples.

Read More thumbnail image: Journal Highlight An inneedle SPME device packed with etched steel wires for polycyclic aromatic hydrocarbons enrichment in water samples

Golden breath: Extracting pungent polyamines from breath with gold nanoparticles

Date: Mar 18, 2019

Author: Jon Evans

Chinese scientists have combined gold nanoparticles with capillary electrophoresis to produce a novel method for detecting some of the compounds that cause bad breath, which they used to confirm the effectiveness of tooth brushing.

Read More thumbnail image: Golden breath Extracting pungent polyamines from breath with gold nanoparticles

Journal Highlight: Development of a 450 nm laser irradiation desorption method for fast headspace solid‐phase microextraction of volatiles from krill oil

Date: Mar 11, 2019

Author: separationsNOW

Chinese scientists have developed a laser irradiation desorption method for extracting volatiles from Antarctic krill oil for analysis by gas chromatography-mass spectrometry.

Read More thumbnail image: Journal Highlight Development of a 450nm laser irradiation desorption method for fast headspace solidphase microextraction of volatiles from krill oil

GC-MS and SPE measure poisons in your tea

Date: Mar 4, 2019

Author: Ryan De Vooght-Johnson

Traces of potentially harmful polycyclic aromatic hydrocarbons are found in many drinks, both alcoholic and non-alcoholic, giving a need for analytical methods suitable for handling large numbers of samples. Scientists from the University of Jaén, Spain, developed a new method for analysing polycyclic aromatics in drinks, involving semi-automated SPE followed by GC-MS.

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Journal Highlight: Determination of multi‐class antibiotic residues in compost by microwave‐enhanced accelerated solvent extraction and ultra performance convergence chromatography‐tandem mass spectrometry

Date: Feb 25, 2019

Author: separationsNOW

Chinese scientists used microwave‐enhanced accelerated solvent extraction to derive 20 antibiotic residues from compost, which they then analyzed with ultra performance convergence chromatography‐tandem mass spectrometry.

Read More thumbnail image: Journal Highlight Determination of multiclass antibiotic residues in compost by microwaveenhanced accelerated solvent extraction and ultra performance convergence chromatographytandem mass spectrometry
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