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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

Illuminating fingerprints: A novel fluorescence-based system for detecting proteins

Date: Apr 16, 2018

Author: Jon Evans

Indian scientists have developed a fluorescence-based system that can reveal a whole load of information about proteins separated by gel electrophoresis while they’re still embedded in the gel.

Read More thumbnail image: Illuminating fingerprints A novel fluorescence-based system for detecting proteins

Cutting through complexity: With non-aqueous CE and two detectors

Date: Mar 19, 2018

Author: Jon Evans

By taking advantage of an organic solvent with a volatile electrolyte, German scientists have managed to couple both a conductivity detector and a mass spectrometer to capillary electrophoresis.

Read More thumbnail image: Cutting through complexity With non-aqueous CE and two detectors

Journal Highlight: CE-XRF–initial steps toward a non-invasive elemental sensitive detector for liquid separations

Date: Mar 12, 2018

Author: separationsNOW

Chemists in the US have developed an elemental specific detector based on X-ray fluorescence spectrometry for use with capillary electrophoresis.

Read More thumbnail image: Journal Highlight CE-XRFinitial steps toward a non-invasive elemental sensitive detector for liquid separations

Journal Highlight: Multi-channel in situ DLS instrumentation enhancing biological small-angle X-ray scattering experiments at the PETRA III beamline P12

Date: Mar 5, 2018

Author: separationsNOW

Scientists from France and Germany have developed a multi-receiver, four-channel dynamic light scattering system at the PETRA III synchrotron for detecting biomolecules separated by size-exclusion chromatography.

Read More thumbnail image: Journal Highlight Multi-channel in situ DLS instrumentation enhancing biological small-angle X-ray scattering experiments at the PETRA III beamline P12

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
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