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Printing power: A printed electrochemical detector for commercial CE systems

Date: Jul 16, 2018

Author: Jon Evans

Scientists in the US have used 3D printing to produce a microfluidic device for conducting amperometry that can easily be coupled to commercial CE systems.

Read More thumbnail image: Printing power A printed electrochemical detector for commercial CE systems

Journal Highlight: Simultaneous qualitative and quantitative determination of compounds in Aloe arborescens Mill using LC with ion trap time‐of‐flight mass spectrometry and diode array detectors

Date: Jul 9, 2018

Author: separationsNOW

Chinese scientists used ion trap time‐of‐flight mass spectrometry and diode array detection, together with liquid chromatography, to analyze the compounds in powder of the plant Aloe arborescens.

Read More thumbnail image: Journal Highlight Simultaneous qualitative and quantitative determination of compounds in Aloe arborescens Mill using LC with ion trap timeofflight mass spectrometry and diode array detectors

Journal Highlight: Development and validation of rapid and sensitive LC methods with PDA and fluorescence detection for determination of piribedil in rat plasma and brain tissues and their pharmacokinetic application

Date: Jul 4, 2018

Author: separationsNOW

Indian researchers used fluorescence and photodiode array detectors, with high‐performance liquid chromatography, to determine piribedil, an anti‐Parkinson's drug, in plasma and brain samples from rats.

Read More thumbnail image: Journal Highlight Development and validation of rapid and sensitive LC methods with PDA and fluorescence detection for determination of piribedil in rat plasma and brain tissues and their pharmacokinetic application

Carbon detector sets new standard: Novel universal detector for organic compounds

Date: Jun 18, 2018

Author: Jon Evans

A new universal detector for use with liquid chromatography can determine the concentration of any organic compound using a single, readily-available chemical standard.

Read More thumbnail image: Carbon detector sets new standard Novel universal detector for organic compounds

Journal Highlight: Screening of semifluorinated n‐alkanes by GC coupled to dielectric barrier discharge ionization MS

Date: Jun 11, 2018

Author: separationsNOW

After coupling gas chromatography and mass spectrometry via dielectric barrier discharge, German scientists tried using this novel system to analyze semifluorinated n‐alkanes in samples of ski wax.

Read More thumbnail image: Journal Highlight Screening of semifluorinated nalkanes by GC coupled to dielectric barrier discharge ionization MS

Journal Highlight: Utilizing two detectors in the measurement of trichloroacetic acid in human urine by reaction headspace gas chromatography

Date: Jun 4, 2018

Author: separationsNOW

Chinese researchers have developed a new method for determining trichloroacetic acid, used for cosmetic treatments such as removing tattoos, in human urine by combining a thermal conductivity detector and a flame ionization detector with gas chromatography.

Read More thumbnail image: Journal Highlight Utilizing two detectors in the measurement of trichloroacetic acid in human urine by reaction headspace gas chromatography

Electrochemical upgrade: The universal wireless electrochemical detector

Date: May 21, 2018

Author: Jon Evans

Scientists in the US have upgraded their mobile electrochemical detector so that it can now communicate wirelessly with a smartphone, making it much more versatile.

Read More thumbnail image: Electrochemical upgrade The universal wireless electrochemical detector

Fatty acids from foamy films found by TOF and TWIMS

Date: May 4, 2018

Author: Ryan De Vooght-Johnson

The sea surface microlayer (SML), roughly the top millimetre of the ocean, contains relatively high concentrations of organic compounds, including fatty acids. Scientists from the University of Stockholm used a combination of UHPLC, time-of-flight mass spectrometry (TOF-MS) and travelling-wave ion mobility spectrometry (TWIMS) to separate and identify a complex mixture of fatty acids from the Arctic Ocean SML.

Read More thumbnail image: Fatty acids from foamy films found by TOF and TWIMS

NIST spectral library matching was poor, puzzling Livermore

Date: May 3, 2018

Author: Ryan De Vooght-Johnson

The NIST library is routinely used for identifying compounds from their mass spectra, but occasionally the matches between experimental and library data are poor. Researchers from the Lawrence Livermore National Laboratory (Livermore, California) found that an impurity in a sample of a chemical incapacitating agent gave a mass spectrum that differed significantly from that in the NIST library.

Read More thumbnail image: NIST spectral library matching was poor puzzling Livermore

The force of Orbitrap can thwart doping from the dark side of sport

Date: May 2, 2018

Author: Ryan De Vooght-Johnson

The use of anabolic steroids by athletes for doping purposes remains a serious problem, but existing analytical methods tend to give poor detection of some steroids, particularly novel ‘designer steroids’, which are often not found in databases. Researchers from the Federal University of Rio de Janeiro and Thermo Fisher (Austin, Texas) devised a new method using GC and an Orbitrap mass spectrometer to detect both known and novel anabolic steroids, along with other doping compounds.

Read More thumbnail image: The force of Orbitrap can thwart doping from the dark side of sport
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