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Sweet finding for novel electrode: Determining the sugars released from biofuel feedstocks

Date: Feb 19, 2018

Author: Jon Evans

Using an electrode covered in carbon nanotubes and nickel nanoparticles, Brazilian scientists have developed a sensitive method for determining the amount of different sugars released from biofuel feedstocks.

Read More thumbnail image: Sweet finding for novel electrode Determining the sugars released from biofuel feedstocks

Journal Highlight: Transfer rates of aflatoxins from herbal medicines to decoctions determined by an optimized HPLC with fluorescence detection method

Date: Feb 19, 2018

Author: separationsNOW

The transfer rates of aflatoxins from five fungi-contaminated raw herbal medicines to their decoctions have been measured by HPLC with fluorescence detection after postcolumn photochemical derivatization.

Read More thumbnail image: Journal Highlight Transfer rates of aflatoxins from herbal medicines to decoctions determined by an optimized HPLC with fluorescence detection method

Canine saliva: Inter-breed proteomics

Date: Feb 15, 2018

Author: Steve Down

The proteome of dog saliva differs between breeds and between individual animals of the same breed, say scientists in the UK, who compared differently sized breeds for the first time.

Read More thumbnail image: Canine saliva Inter-breed proteomics

Super isomer separation succeeds with cellulose

Date: Feb 15, 2018

Author: Ryan De Vooght-Johnson

Pyrethroids are widely used insecticides, which are usually sold as mixtures of enantiomers. These isomers have different activities and environmental effects. Scientists from China's Southwest University in Chongqing have developed new methods to separate the enantiomeric isomers of two pyrethroids, bifenthrin and lambda-cyhalothrin, using reversed-phase HPLC.

Read More thumbnail image: Super isomer separation succeeds with cellulose

Polarity parameters put in place by QSPR

Date: Feb 15, 2018

Author: Ryan De Vooght-Johnson

Computational prediction of relative retention times for HPLC can, in theory, save the running of numerous trials when developing new methods. Scientists from the Islamic Azad University in Tehran, looked at the prediction of solute polarity parameters, which can be used to calculate retention times, using a support vector machine technique and an enhanced replacement method.

Read More thumbnail image: Polarity parameters put in place by QSPR

Pregabalin problem proved by Perugia protocol

Date: Feb 15, 2018

Author: Ryan De Vooght-Johnson

The prescription pharmaceutical pregabalin seems to be increasingly abused, but data is scarce on the amount of misuse. Scientists from the University of Perugia in Italy have developed a method of testing for pregabalin use by taking hair samples, identifying the compound by GC-MS/MS.

Read More thumbnail image: Pregabalin problem proved by Perugia protocol

Journal Highlight: Volatile organic compounds associated with milk spoilage by psychrotrophic bacteria

Date: Feb 12, 2018

Author: separationsNOW

A total of 47 volatile organic compounds belonging to seven chemical groups were identified by GC/MS in spoiled milk that had been inoculated with five psychrotrophic bacterial strains.

Read More thumbnail image: Journal Highlight Volatile organic compounds associated with milk spoilage by psychrotrophic bacteria

Do feed the animals: An IC method for detecting phosphorus and sulfur in animal feed

Date: Feb 12, 2018

Author: Jon Evans

A novel ion chromatography method for detecting phosphorus and sulfur in animal feed is not only greener than current recommended methods, but also faster, cheaper and more sensitive.

Read More thumbnail image: Do feed the animals An IC method for detecting phosphorus and sulfur in animal feed

Journal Highlight: Power of Orbitrap-based LC-high resolution-MS/MS for comprehensive drug testing in urine with or without conjugate cleavage or using dried urine spots after on-spot cleavage in comparison to established LC–MSn or GC–MS procedures

Date: Feb 12, 2018

Author: separationsNOW

Scientists in Germany have compared using Orbitrap-based liquid chromatography-high resolution tandem mass spectrometry for detecting drugs in urine with conventional liquid and gas chromatography methods.

Read More thumbnail image: Journal Highlight Power of Orbitrap-based LC-high resolution-MSMS for comprehensive drug testing in urine with or without conjugate cleavage or using dried urine spots after on-spot cleavage in comparison to established LCMSn or GCMS procedures

Journal Highlight: Surfactant-assisted electromembrane extraction combined with cyclodextrin-modified CE for the separation and quantification of Tranylcypromine enantiomers in biological samples

Date: Feb 12, 2018

Author: separationsNOW

Chemists in Iran have combined surfactant-assisted electromembrane extraction with cyclodextrin-modified capillary electrophoresis to analyze enantiomers of the antidepressant drug Tranylcypromine in biological samples.

Read More thumbnail image: Journal Highlight Surfactant-assisted electromembrane extraction combined with cyclodextrin-modified CE for the separation and quantification of Tranylcypromine enantiomers in biological samples
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