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Preventing drug degradation: Opiate stability in stored blood

Date: Apr 7, 2014

Author: Steve Down

The effects of the storage conditions on the stability of morphine, codeine and 6-acetylmorphine in blood have been assessed by Greek scientists, who found that sodium fluoride is the best agent for stabilising concentrations.

Read More thumbnail image: Preventing drug degradation Opiate stability in stored blood

Don’t drop it: Stabilising suspended air bubbles for microextraction

Date: Mar 24, 2014

Author: Steve Down

A device for single-drop microextraction using a liquid-gas compound pendant drop has been designed and demonstrated by Chinese scientists, providing greater drop stability and reduced extraction times.

Read More thumbnail image: Dont drop it Stabilising suspended air bubbles for microextraction

Journal Highlight: Suspension trapping (STrap) sample preparation method for bottom-up proteomics analysis

Date: Mar 17, 2014

Author: separationsNOW

The suspension trapping (STrap) method has been described and applied to the analysis of cellular lysates, enriched membrane preparations and immunoprecipitates.

Read More thumbnail image: Journal Highlight Suspension trapping STrap sample preparation method for bottom-up proteomics analysis

Scraping the barrel: Getting the most out of archaeological pots

Date: Mar 10, 2014

Author: Steve Down

A novel method for effectively removing organic residues from archaeological pots gives higher recoveries of lipid residues, allowing a clearer characterisation of the original contents.

Read More thumbnail image: Scraping the barrel Getting the most out of archaeological pots

Cosmetic musks: Supported liquid extraction

Date: Feb 24, 2014

Author: Steve Down

An efficient way to remove synthetic musks from cosmetic creams combining supported liquid extraction and solid-phase extraction has been devised by Chinese scientists for subsequent GC/MS measurement.

Read More thumbnail image: Cosmetic musks Supported liquid extraction

Journal Highlight: Commercial DNA extraction kits impact observed microbial community composition in permafrost samples

Date: Feb 17, 2014

Author: separationsNOW

The extraction of total community genomic DNA (gDNA) from permafrost is influenced by the type of commercial DNA extraction kit, reproducible results being achieved with gDNA from the three bead-beating lysis extraction kits.

Read More thumbnail image: Journal Highlight Commercial DNA extraction kits impact observed microbial community composition in permafrost samples

Drugs in drains: Sewage sampler for methamphetamine

Date: Feb 10, 2014

Author: Steve Down

Passive sampling devices have been inserted into the sewer lines leading from buildings used for illegal drug activity to trap methamphetamine for testing, a procedure which could reinforce criminal cases against suspects.

Read More thumbnail image: Drugs in drains Sewage sampler for methamphetamine

Pyrethroid metabolites in urine: Deconstructed hollow fibre microextraction

Date: Jan 27, 2014

Author: Steve Down

Urinary metabolites of a pyrethroid insecticide have been extracted by a deconstructed hollow fibre-supported liquid-phase microextraction method which is amenable with HPLC analysis.

Read More thumbnail image: Pyrethroid metabolites in urine Deconstructed hollow fibre microextraction

Journal Highlight: An update for human blood plasma pretreatment for optimized recovery of low-molecular-mass peptides prior to CE–MS and SPE–CE–MS

Date: Jan 20, 2014

Author: separationsNOW

Acetonitrile precipitation followed by a range of centrifugal filtration conditions was evaluated for the separation of peptides of low relative molecular mass in human blood plasma before CE–MS and SPE–CE–MS.

Read More thumbnail image: Journal Highlight An update for human blood plasma pretreatment for optimized recovery of low-molecular-mass peptides prior to CEMS and SPECEMS

Pesticidal protein from transgenic crops: Validation of soil extraction and ELISA measurement

Date: Jan 13, 2014

Author: Steve Down

A simple method for extracting a pesticidal protein from soil after it escapes from transgenic corn has been validated by US scientists, supporting an accurate method for its measurement.

Read More thumbnail image: Pesticidal protein from transgenic crops Validation of soil extraction and ELISA measurement
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