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Statistical moment techniques sort out distorted peaks

Date: Mar 20, 2019

Author: Ryan De Vooght-Johnson

Most calculations and associated software involving chromatography peaks assume a ‘Gaussian’ peak shape, but often this is not the case. Researchers from the University of Texas at Arlington and AbbVie’s Process Analytical Technology centre in Chicago have developed a new user-friendly method for calculating peak parameters using statistical moments, while also providing a free Excel template for calculations.

Read More thumbnail image: Statistical moment techniques sort out distorted peaks

Journal Highlight: REFLEX: a program for the analysis of specular X‐ray and neutron reflectivity data

Date: Mar 18, 2019

Author: spectroscopyNOW

A freeware standalone program named REFLEX dedicated to the simulation and analysis of X-ray and neutron reflectivity from multilayers that was first written two decades ago with constant improvements since, has been published for the first time.

Read More thumbnail image: Journal Highlight REFLEX a program for the analysis of specular Xray and neutron reflectivity data

Storage solutions: Reversible hydrogen

Date: Mar 15, 2019

Author: David Bradley

Proton nuclear magnetic resonance (NMR) spectroscopy was used in studying novel materials for reversible hydrogen storage.

Read More thumbnail image: Storage solutions Reversible hydrogen

Natural nanoparticles: AAS mettle tested

Date: Mar 15, 2019

Author: David Bradley

Atomic absorption spectroscopy (AAS) and inductively coupled plasma mass spectrometry (ICP-MS) data have been used to formulate recommendations on safe concentration limits for naturally occurring metal-containing nanoparticles that might be present in drinking water.

Read More thumbnail image: Natural nanoparticles AAS mettle tested

Asbestos analysis: Drinking water contamination

Date: Mar 15, 2019

Author: David Bradley

A stepwise multiple differential Fourier-transform infra-red spectra method inductively coupled plasma optical emission spectrometry with a partial least squares method, and have been used to carry out a quantitative analysis of asbestos in drinking water.

Read More thumbnail image: Asbestos analysis Drinking water contamination

Plastic double helix: X-ray reveals details

Date: Mar 15, 2019

Author: David Bradley

X-ray crystallography has revealed the existence of a double helical structure in a synthetic macromolecule known for thirty years. The discovery could open up novel applications for the high-strength polymer called, PBDT [poly(2,2'-disulfonyl-4,4'-benzidine terephthalamide)].

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Journal Highlight: Detection and quantification of multiple RNA sequences using emerging ultrasensitive fluorescent in situ hybridization techniques

Date: Mar 14, 2019

Author: spectroscopyNOW

Detailed protocols have been described for using the RNAscope and BaseScope to detect RNA transcripts in neuronal tissue, including the extraction of quantitative data from hybridized tissue sections.

Read More thumbnail image: Journal Highlight Detection and quantification of multiple RNA sequences using emerging ultrasensitive fluorescent in situ hybridization techniques

Journal Highlight: An innovative bioanalytical research project course to train undergraduate students on liquid chromatography–mass spectrometry

Date: Mar 13, 2019

Author: spectroscopyNOW

An innovative undergraduate research course has been devised for training well‐prepared graduating seniors on LC/MS/MS, including a sensitive method for detecting vitamin B9 (folic acid) levels in different milk samples.

Read More thumbnail image: Journal Highlight An innovative bioanalytical research project course to train undergraduate students on liquid chromatographymass spectrometry

Tainted tattoo inks: Anaesthetics increase health risk

Date: Mar 12, 2019

Author: Steve Down

An LC/MS method has been designed to identify and measure anaesthetics that have been surreptitiously added to tattoo inks, a practice that could present serious health risks to the recipients.

Read More thumbnail image: Tainted tattoo inks Anaesthetics increase health risk

Journal Highlight: Evaluation of X‐ray tomography contrast agents: A review of production, protocols, and biological applications

Date: Mar 11, 2019

Author: spectroscopyNOW

Molecule‐based and nanoparticle‐based contrast agents used in biological applications to enhance the image quality in X-ray tomography have been compiled and reported.

Read More thumbnail image: Journal Highlight Evaluation of Xray tomography contrast agents A review of production protocols and biological applications
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