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Journal Highlight: Elimination of the artefact peaks in CE determination of glutamate by using organic solvents in sample preparation

Date: Nov 23, 2015

Author: separationsNOW

Brazilian scientists have used organic solvents in sample preparation to prevent peak splitting and increase stacking when separating amino acids by capillary electrophoresis.

Read More thumbnail image: Journal Highlight Elimination of the artefact peaks in CE determination of glutamate by using organic solvents in sample preparation

Take your breath away: A novel coating for extracting aldehydes from exhaled breath

Date: Nov 16, 2015

Author: Jon Evans

By extracting aldehydes from exhaled breath, a coating of polypyrrole and graphene on the inner wall of a stainless steel tube could help diagnose lung cancer.

Read More thumbnail image: Take your breath away A novel coating for extracting aldehydes from exhaled breath

Journal Highlight: Optimizing microwave-assisted extraction of phenolic antioxidants from Red Delicious and Jonathan apple pomace

Date: Nov 9, 2015

Author: separationsNOW

Scientists in the US have optimized the microwave-assisted extraction of phenolic antioxidants from the pomace of Red Delicious and Jonathan apple varieties, prior to analysis by HPLC.

Read More thumbnail image: Journal Highlight Optimizing microwave-assisted extraction of phenolic antioxidants from Red Delicious and Jonathan apple pomace

A polar adventure: Extracting polar molecules with graphene oxide

Date: Oct 19, 2015

Author: Jon Evans

A novel graphene oxide-polymer composite offers a way to extend stir bar sorptive extraction to polar analytes such as fluoroquinolone antibiotics.

Read More thumbnail image: A polar adventure Extracting polar molecules with graphene oxide

Journal Highlight: In situ synthesis of porous carbons by using room-temperature, atmospheric-pressure dielectric barrier discharge plasma as high-performance adsorbents for SPME

Date: Oct 12, 2015

Author: separationsNOW

A one-step, template-free method is described to synthesize porous carbons in situ on a metal surface at room temperature, for use as a fibre coating in SPME.

Read More thumbnail image: Journal Highlight In situ synthesis of porous carbons by using room-temperature atmospheric-pressure dielectric barrier discharge plasma as high-performance adsorbents for SPME

Journal Highlight: Efficient combination of circulating ultrasound-assisted extraction and centrifugal partition chromatography for extraction and on-line separation of chemical constituents from Stellera chamaejasme L.

Date: Oct 12, 2015

Author: separationsNOW

Chinese scientists have used circulating ultrasonic-assisted extraction and centrifugal partition chromatography to extract several chemical compounds from a medicinal herb for further analysis.

Read More thumbnail image: Journal Highlight Efficient combination of circulating ultrasound-assisted extraction and centrifugal partition chromatography for extraction and on-line separation of chemical constituents from Stellera chamaejasme L_

Microwave-assisted extraction technique for preparation of bone tissue

Date: Sep 15, 2015

Author: Ryan De Vooght-Johnson

During a post-mortem examination, determining whether the deceased has ingested a drug can be critical to establishing the cause of death. Usually, this involves analysis of blood, urine, hair, and tissue samples. In circumstances where the body has lain undiscovered for long periods, however, these conventional samples may not be available due to decomposition. In situations where the body has skeletonised, bone tissue becomes a valuable specimen.

Read More thumbnail image: Microwave-assisted extraction technique for preparation of bone tissue

Journal Highlight: Evaluation of hot and cold extraction of bioactive compounds in teas

Date: Sep 14, 2015

Author: separationsNOW

The bioactive compounds of different types of tea in hot and cold infusions were compared using principal components analysis and hierarchical cluster analysis and their activities were determined.

Read More thumbnail image: Journal Highlight Evaluation of hot and cold extraction of bioactive compounds in teas

Monolithic enzyme reactor: Accelerated protein digestion

Date: Sep 7, 2015

Author: Steve Down

An enzyme reactor primed with monolithic material and multiple proteases has been designed for the rapid digestion of proteins with the same efficiency as in-solution digestion but at far faster rates.

Read More thumbnail image: Monolithic enzyme reactor Accelerated protein digestion

OFFGel fractionation: Proteins or peptides?

Date: Aug 24, 2015

Author: Steve Down

The differences revealed by a comparison of OFFGel fractionation of a mouse kidney lysate suggest that the separation of whole proteins is better for shotgun analysis while peptide fractionation is better suited to quantitation by isotope tagging.

Read More thumbnail image: OFFGel fractionation Proteins or peptides
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