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Journal Highlight: Determination of nitenpyram and 6‐chloronicotinic acid in environmental samples by ion chromatography coupled with online photochemically induced fluorescence detector

Date: Oct 4, 2018

Author: separationsNOW

Scientists from China and Pakistan have developed an ion chromatography method for determining the insecticide nitenpyram and its metabolite 6‐chloronicotinic acid in environmental samples.

Read More thumbnail image: Journal Highlight Determination of nitenpyram and 6chloronicotinic acid in environmental samples by ion chromatography coupled with online photochemically induced fluorescence detector

Journal Highlight: A fluorescence toolbox: A review of investigation of electrophoretic separations, process, and interfaces

Date: Oct 4, 2018

Author: separationsNOW

This review focuses on the use of fluorescence spectroscopy techniques for investigating capillary, gel and microchip electrophoresis.

Read More thumbnail image: Journal Highlight A fluorescence toolbox A review of investigation of electrophoretic separations process and interfaces

Rapid enzyme digestion: Greater proteome coverage

Date: Oct 2, 2018

Author: Steve Down

Rapid enzymatic processing of proteins over a few minutes in proteomic studies to give only partial digestion is at least as good as complete digestion, say US researchers, providing a valid alternative that streamlines and speeds up proteome characterisation.

Read More thumbnail image: Rapid enzyme digestion Greater proteome coverage

Methane method makes mixture measurement quicker

Date: Oct 1, 2018

Author: Ryan De Vooght-Johnson

GC using a flame ionisation detector (FID) is a common and effective way of analysing mixtures of organic compounds, but quantification of every compound typically requires the preparation and injection of many standard solutions. Scientists from the University of Texas at Arlington used a carbon reactor prior to the FID that converted the analyte’s carbon atoms to methane, thus minimising the need for standards.

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The walrus and the chromatographer: LC-MS/MS of steroids in bone

Date: Oct 1, 2018

Author: Ryan De Vooght-Johnson

Examination of the steroid hormone levels in animals from past generations can give useful information on stress and reproduction. Researchers from the University of Alaska Fairbanks and Purdue University (West Lafayette, Indiana) used LC-MS/MS to detect steroid hormones in bones from walruses that had died recently and also those from ancient specimens.

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Journal Highlight: Further evidence for sustainable alternatives to replace threatened animal horn based on quantitative proteomic analysis

Date: Oct 1, 2018

Author: separationsNOW

Quantitative proteomics has been used to compare the proteome in horns from endangered species (rhinoceros, Saiga antelope, Tibetan antelope) and common species (yak, water buffalo, goat) to build evidence for sustainable alternatives to replace animal horn from threatened species.

Read More thumbnail image: Journal Highlight Further evidence for sustainable alternatives to replace threatened animal horn based on quantitative proteomic analysis

Toxtyper selection speeds overdose detection

Date: Sep 29, 2018

Author: Ryan De Vooght-Johnson

Cases of overdose need rapid diagnosis and treatment, but the patient may be unable or unwilling to disclose what they have taken. Researchers from Saarland University (Homburg site, Germany) developed a protocol to rapidly quantify 22 drugs and two metabolites in plasma.

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Processed purée pongs prevented by LC-MS

Date: Sep 27, 2018

Author: Ryan De Vooght-Johnson

Tomato products can be spoiled, giving rise to unpleasant tastes, by various species of Alicyclobacillus bacteria. Researchers from The Experimental Station for the Food Processing Industry in Parma, Italy, used LC-MS to identify specific compounds linked to the growth of these bacteria in tomato purée.

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Journal Highlight: Extremely stable high molecular mass soluble multiprotein complex from eggs of sea urchin Strongylocentrotus intermedius with phosphatase activity

Date: Sep 24, 2018

Author: separationsNOW

Russian scientists used various analytical techniques, including ion-exchange chromatography and thin layer chromatography, to analyze a very stable multiprotein complex extracted from sea urchin eggs.

Read More thumbnail image: Journal Highlight Extremely stable high molecular mass soluble multiprotein complex from eggs of sea urchin Strongylocentrotus intermedius with phosphatase activity

Journal Highlight: Exploiting green sorbents in rotating‐disk sorptive extraction for the determination of parabens by HPLC tandem electrospray ionization triple quadrupole MS

Date: Sep 24, 2018

Author: separationsNOW

Scientists from Brazil, Colombia and Chile investigated the viability of applying cork and montmorillonite clay modified with ionic liquid as biosorbents in rotating‐disk sorptive extraction.

Read More thumbnail image: Journal Highlight Exploiting green sorbents in rotatingdisk sorptive extraction for the determination of parabens by HPLC tandem electrospray ionization triple quadrupole MS
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