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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

Journal Highlight: Correlation of electrophoretic urine protein banding patterns with severity of renal damage in dogs with proteinuric chronic kidney disease

Date: Sep 24, 2018

Author: separationsNOW

Scientists in the US have shown that urine protein banding patterns produced by gel electrophoresis are useful for the detection of glomerular and tubulointerstitial damage in dogs with chronic kidney disease.

Read More thumbnail image: Journal Highlight Correlation of electrophoretic urine protein banding patterns with severity of renal damage in dogs with proteinuric chronic kidney disease

Journal Highlight: A rapid method to determine nine natural cannabinoids in beverages and food derived from Cannabis sativa by liquid chromatography coupled to tandem mass spectrometry on a QTRAP 4000

Date: Sep 21, 2018

Author: separationsNOW

An LC/MS/MS method has been developed for measuring nine phytocannabinoids in food and beverages derived from hemp seeds, flour and oil.

Read More thumbnail image: Journal Highlight A rapid method to determine nine natural cannabinoids in beverages and food derived from Cannabis sativa by liquid chromatography coupled to tandem mass spectrometry on a QTRAP 4000

Hepatitis C treatment: Antiviral response prediction

Date: Sep 17, 2018

Author: Steve Down

A combined proteomics and pharmacogenomics approach to the treatment of hepatitis C with direct acting antiviral therapies has identified three peptides derived from human corticosteroid binding globulin that can predict the response to treatment.

Read More thumbnail image: Hepatitis C treatment Antiviral response prediction

Multiple and miniature: A portable gas chromatography system with three detectors

Date: Sep 17, 2018

Author: Jon Evans

Using commercially available instruments, Australian chemists have developed a gas chromatography system with three different detectors that is still small enough to be portable.

Read More thumbnail image: Multiple and miniature A portable gas chromatography system with three detectors
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