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Pesticides on fruits: Ambient carbon fibre ionisation

Date: Mar 25, 2019

Author: Steve Down

Residual pesticides on tomatoes have been detected and measured by a recently developed ambient mass spectrometry method using carbon fibre ionisation, with detection limits well below EU maximum residual levels.

Read More thumbnail image: Pesticides on fruits Ambient carbon fibre ionisation

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

Deep UV laser ablation: Soft technique leaves peptides and proteins intact

Date: Feb 28, 2019

Author: Steve Down

A gentle ambient laser ablation technique linked with electrospray ionisation mass spectrometry provided spectra of intact peptides, proteins and phospholipids that were identical to conventional electrospray spectra, providing an opportunity for rapid and accurate biomolecule analysis.

Read More thumbnail image: Deep UV laser ablation Soft technique leaves peptides and proteins intact

Journal Highlight: Experimental methods in chemical engineering: Mass spectrometry‐MS

Date: Feb 13, 2019

Author: spectroscopyNOW

This mini-review summarises the technique of mass spectrometry, covering the basic components and techniques, before reviewing recent applications published in 2016-2017 which include many in the field of chemical engineering.

Read More thumbnail image: Journal Highlight Experimental methods in chemical engineering Mass spectrometryMS

Cracking egg fraud: Phospholipid marker for farming conditions

Date: Feb 13, 2019

Author: Steve Down

Eggs produced by hens raised in cages can be distinguished from those produced in barns from the differences in lipid content, say researchers in the UK, who made their discovery using non-targeted metabonomics.

Read More thumbnail image: Cracking egg fraud Phospholipid marker for farming conditions

Fractional factorials find fish toxins

Date: Jan 28, 2019

Author: Ryan De Vooght-Johnson

Ciguatoxins are found in a variety of tropical fish and can cause severe poisoning, but their analysis is challenging. Researchers from the University of Vigo, Spain, examined ciguatoxins by LC-MS/MS, optimising the electrospray ionisation conditions by means of various experimental designs, including a fractional factorial design (FFD).

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Lipidomics and metabolomics: Simultaneous analysis

Date: Jan 21, 2019

Author: Steve Down

A new workflow comprising parallel HILIC and RPLC separations permits simultaneous lipidomics and metabolomics analyses in one LC/MS run without affecting the throughput, providing both compound identification and quantification.

Read More thumbnail image: Lipidomics and metabolomics Simultaneous analysis

Journal Highlight: Newborn screening for 3‐hydroxy‐3‐methylglutaric aciduria using direct analysis in real‐time mass spectrometry

Date: Jan 16, 2019

Author: spectroscopyNOW

A novel method utilizing ambient thermal desorption ionization with a direct analysis in real‐time source integrated with mass spectrometry (DART-MS) has been established and applied to the rapid analysis of 3‐hydroxy‐3‐methylglutaric acid in neonatal urine.

Read More thumbnail image: Journal Highlight Newborn screening for 3hydroxy3methylglutaric aciduria using direct analysis in realtime mass spectrometry

Sugars from space: Meteorite sources supported

Date: Jan 1, 2019

Author: Steve Down

Deoxysugars, which are building blocks of life, have been formed in the lab under conditions that simulate the astrophysical environment of ices, supporting their formation in space, say NASA researchers, who also found deoxysugar derivatives in meteorites to reinforce the connection.

Read More thumbnail image: Sugars from space Meteorite sources supported
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