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Sudan dyes in seconds: Paper spray mass spectrometry for chilli powder tests

Date: Jun 15, 2013

Author: Steve Down

Paper spray mass spectrometry has been applied to measure five Sudan dyes simultaneously in chilli pepper within 60 seconds, providing a green, high-throughput method that could be used in quality control labs.

Read More thumbnail image: Sudan dyes in seconds Paper spray mass spectrometry for chilli powder tests

Journal Highlight: Comparison of direct mass spectrometry methods for the on-line analysis of volatile compounds in foods

Date: Jun 10, 2013

Author: spectroscopyNOW

This study highlighted the equivalent performances of APCI-MS and PTR-MS for in vitro and in vivo flavour release investigations and provided useful data on the problematic use of sample bags for headspace analyses.

Read More thumbnail image: Journal Highlight Comparison of direct mass spectrometry methods for the on-line analysis of volatile compounds in foods

Filter paper prop: Support for biological samples in well plates for forensic drug analysis

Date: Jun 1, 2013

Author: Steve Down

Filter paper has been used as a support in 96-well plates for ten types of biological fluids and tissues in the post-mortem LC/MS analysis of the alkaloid colchicine, in which the calibration curve for dried blood spots can be applied to most of the other sample types.

Read More thumbnail image: Filter paper prop Support for biological samples in well plates for forensic drug analysis

Food-grade paperboard: Odour profiling with mass spec-based electronic nose

Date: May 15, 2013

Author: Steve Down

The odour profile of recycled paperboard bound for food packaging applications has been evaluated by a mass spectrometric-based electronic nose to provide a quick option for quality control.

Read More thumbnail image: Food-grade paperboard Odour profiling with mass spec-based electronic nose

Journal Highlight: Mass spectrometry imaging under ambient conditions

Date: May 7, 2013

Author: spectroscopyNOW

Recent developments and applications of ambient ionization techniques for mass spectrometry imaging have been reviewed and the role of bioinformatics in acquiring and interpreting the chemical and spatial information is described.

Read More thumbnail image: Journal Highlight Mass spectrometry imaging under ambient conditions

Cocaine on currency: Higher levels associated with criminality

Date: May 1, 2013

Author: Steve Down

US scientists have analysed 17 years worth of data on the contamination of currency with cocaine to determine the levels which are statistically higher than background, so that banknotes contaminated by drug-related crime rather than general contamination during circulation can be identified.

Read More thumbnail image: Cocaine on currency Higher levels associated with criminality

Polarity changes: Simultaneous positive and negative modes in DESI

Date: Apr 15, 2013

Author: Steve Down

Danish scientists have introduced a dual-mode imaging system for desorption ionisation mass spectrometry, in which images can be acquired in positive and negative mode simultaneously.

Read More thumbnail image: Polarity changes Simultaneous positive and negative modes in DESI

Journal Highlight: Soft ionization mass spectroscopy: Insights into the polymerization mechanism

Date: Apr 8, 2013

Author: spectroscopyNOW

This review is focused on the use of soft ionization mass spectroscopy to characterize the products of polymerization/degradation reactions thereby yielding mechanistic information.

Read More thumbnail image: Journal Highlight Soft ionization mass spectroscopy Insights into the polymerization mechanism

Chocolate threats: Carcinogenic PAHs

Date: Apr 1, 2013

Author: Steve Down

Several polycyclic aromatic hydrocarbons have been determined in chocolate by GC/MS following a specially devised SPME procedure, giving a more sensitive method than an HPLC procedure developed in 2012 by the same research group.

Read More thumbnail image: Chocolate threats Carcinogenic PAHs

Gut instinct: Stem cell reactions

Date: Apr 1, 2013

Author: David Bradley

In research funded by Great Ormond Street Hospital Children's Charity and with support from the Fondazione Citta della Speranza, researchers have demonstrated that stem cells taken from amniotic fluid can be used to restore gut structure and function following intestinal damage in rodents. The new work published in the journal Gut uses magnetic resonance imaging and could pave the way to a new form of cell therapy that is able to reverse serious damage caused by inflammation in the intestines of babies.

Read More thumbnail image: Gut instinct Stem cell reactions
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