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Ultrasonic fungicides: Tebuconazole extraction from garlic bulbs and soil

Date: Jul 9, 2014

Author: Steve Down

The fungicide tebuconazole has been extracted from soil, water and garlic plants by the simple technique of ultrasound-assisted extraction, with the bonus that no subsequent solvent partitioning steps are required.

Read More thumbnail image: Ultrasonic fungicides Tebuconazole extraction from garlic bulbs and soil

Immobilised carbon nanohorns: Integrated extraction/stirring device

Date: Jun 20, 2014

Author: Steve Down

Single-walled carbon nanohorns have been immobilised on a borosilicate disk to create a stir extraction device for micro-SPE, demonstrated on the extraction of the UV filter compound benzophenone-3 from swimming pool water.

Read More thumbnail image: Immobilised carbon nanohorns Integrated extractionstirring device

Journal Highlight: Dried saliva spot as a sampling technique for saliva samples

Date: Jun 16, 2014

Author: separationsNOW

Dried saliva spots were used as a sampling technique for saliva samples for the first time, illustrated by the analysis of lidocaine.

Read More thumbnail image: Journal Highlight Dried saliva spot as a sampling technique for saliva samples

Designer trap: Ionic liquids for lead

Date: Jun 11, 2014

Author: Steve Down

The first solid-phase extraction medium containing functionalised ionic liquids has been developed by Iranian scientists who used it to extract lead from various materials, including leaves and lipstick.

Read More thumbnail image: Designer trap Ionic liquids for lead

Clouds for urinary curcumin: Cold column trapping with cloud point extraction

Date: May 26, 2014

Author: Steve Down

The biologically active spice compound curcumin has been removed from human urine by cloud point extraction combined with cold column trapping, for subsequent analysis by HPLC.

Read More thumbnail image: Clouds for urinary curcumin Cold column trapping with cloud point extraction

Journal Highlight: A framework for the extraction and interpretation of organic molecules in speleothem carbonate

Date: May 19, 2014

Author: separationsNOW

Three pieces of speleothem calcite were subjected to a rigorous extraction procedure based on sequential digestion for measuring the concentration profiles of individual compounds with increasing distance from sample surfaces.

Read More thumbnail image: Journal Highlight A framework for the extraction and interpretation of organic molecules in speleothem carbonate

Spent handgun cartridges: Headspace sorptive extraction to estimate time since discharge

Date: May 12, 2014

Author: Steve Down

A sensitive method for trapping volatile compounds emitted by spent handgun cartridges involves headspace sorptive extraction and allows the aging profile and the time since firing to be determined.

Read More thumbnail image: Spent handgun cartridges Headspace sorptive extraction to estimate time since discharge

Fly fixing: Moulded target for mass spectrometry imaging of intact fruit flies

Date: Apr 21, 2014

Author: Steve Down

Special targets have been designed by European scientists for mass spectrometry imaging experiments to give reproducible positioning of male and female fruit flies that produces more consistent results and helps to eliminate mass deviations.

Read More thumbnail image: Fly fixing Moulded target for mass spectrometry imaging of intact fruit flies

Journal Highlight: Passive sampling methods for contaminated sediments: State of the science for organic contaminants

Date: Apr 14, 2014

Author: separationsNOW

The literature on passive sampler methods used in contaminated sediments to assess the chemical activity of organic contaminants has been reviewed and some of the future challenges outlined.

Read More thumbnail image: Journal Highlight Passive sampling methods for contaminated sediments State of the science for organic contaminants

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
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