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Come together: Two-photon-excited-fluorescence detection with supercritical fluid chromatography

Date: May 20, 2019

Author: Jon Evans

When looking for a detection technique for the first microchip version of supercritical fluid chromatography, German chemists turned to a form of laser-induced fluorescence detection inspired by two-photon fluorescence microscopy.

Read More thumbnail image: Come together Two-photon-excited-fluorescence detection with supercritical fluid chromatography

Journal Highlight: Multi‐angle light scattering: An efficient tool revealing molecular structure of synthetic polymers

Date: May 13, 2019

Author: separationsNOW

Multi-angle light scattering with size‐exclusion chromatography or asymmetric flow field flow fractionation can be used to probe important characteristics of polymers such as chain conformation and branching, says a German scientist.

Read More thumbnail image: Journal Highlight Multiangle light scattering An efficient tool revealing molecular structure of synthetic polymers

Journal Highlight: Rapid electrophoretic monitoring of the anaesthetic ketamine and its metabolite norketamine in rat blood using a contactless conductivity detector to study the pharmacokinetics

Date: May 7, 2019

Author: separationsNOW

Scientists in Czechia have combined contactless conductivity detection with capillary electrophoresis to study the pharmacokinetics of the anaesthetic ketamine and its main metabolite norketamine.

Read More thumbnail image: Journal Highlight Rapid electrophoretic monitoring of the anaesthetic ketamine and its metabolite norketamine in rat blood using a contactless conductivity detector to study the pharmacokinetics

Unrestricted mobility: Combining capillary electrophoresis with ion mobility spectrometry

Date: Apr 15, 2019

Author: Jon Evans

There are many benefits to coupling capillary electrophoresis with mass spectrometry, but there may be even more to coupling it with ion mobility spectrometry.

Read More thumbnail image: Unrestricted mobility Combining capillary electrophoresis with ion mobility spectrometry

Journal Highlight: Measurement of 18O18O and 17O18O in atmospheric O2 using the 253 Ultra mass spectrometer and applications to stratospheric and tropospheric air samples

Date: Apr 8, 2019

Author: separationsNOW

Scientists in the Netherlands used high‐resolution stable isotope ratio mass spectrometry, together with gas chromatography, to analyze oxygen isotopoes in atmospheric samples.

Read More thumbnail image: Journal Highlight Measurement of 18O18O and 17O18O in atmospheric O2 using the 253 Ultra mass spectrometer and applications to stratospheric and tropospheric air samples

Journal Highlight: Separation of brombuterol enantiomers in CE with cyclodextrin‐type chiral selectors and investigation of structure of selector‐selectand complexes using NMR spectroscopy

Date: Apr 1, 2019

Author: separationsNOW

An international team of scientists has used nuclear magnetic resonance spectroscopy, in conjunction with capillary electrophoresis, to study the interaction between brombuterol enantiomers and various cyclodextrins.

Read More thumbnail image: Journal Highlight Separation of brombuterol enantiomers in CE with cyclodextrintype chiral selectors and investigation of structure of selectorselectand complexes using NMR spectroscopy

Journal Highlight: Identification of dysregulation of atrial proteins in rats with chronic obstructive apnea using 2D PAGE and MS

Date: Mar 25, 2019

Author: separationsNOW

Scientists in the US used two‐dimensional polyacrylamide gel electrophoresis to investigate the proteins that are dysregulated in the atria due to obstructive sleep apnea.

Read More thumbnail image: Journal Highlight Identification of dysregulation of atrial proteins in rats with chronic obstructive apnea using 2D PAGE and MS

Pores for peptides: The world’s smallest mass spectrometer

Date: Mar 18, 2019

Author: Jon Evans

By using nanopores to determine the mass of various peptides, a team of scientists from Belgium and the Netherlands has produced the smallest mass spectrometer in the world.

Read More thumbnail image: Pores for peptides The worlds smallest mass spectrometer

Journal Highlight: Liquid chromatography–mass spectrometry is effective for analysis of ergosterol in fungus infected nails

Date: Mar 11, 2019

Author: separationsNOW

Chinese scientists have developed a mass spectrometer test to check for the presence of ergosterol in fungus-infected nails.

Read More thumbnail image: Journal Highlight Liquid chromatographymass spectrometry is effective for analysis of ergosterol in fungus infected nails

Journal Highlight: Capsaicinoids in chili habanero by flow injection with coulometric array detection

Date: Mar 4, 2019

Author: separationsNOW

Scientists from Mexico and Italy have shown that combining a coulometric detector with high performance liquid chromatography offers a quick and efficient way to investigate capsaicinoids in chili extracts.

Read More thumbnail image: Journal Highlight Capsaicinoids in chili habanero by flow injection with coulometric array detection
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