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Orange legacy: High levels of PCDDs in Vietnamese breast milk from historical Agent Orange spraying

Date: Aug 1, 2011

Author: Steve Down

Dioxins present in Agent Orange, the defoliant sprayed during the Vietnam War, remain at elevated levels in the milk of Vietnamese nursing mothers residing in the contaminated areas more than 40 years later, with major health implications for the feeding infants.

Read More thumbnail image: Orange legacy High levels of PCDDs in Vietnamese breast milk from historical Agent Orange spraying

Increasing ions: solvent-assisted inlet ionisation boosts sensitivity

Date: Jul 15, 2011

Author: Steve Down

A novel form of inlet ionisation mass spectrometry for samples in solution has been demonstrated by scientists in the USA. The technique differs from atmospheric pressure ionisation by transporting the solution to the vacuum inlet via a heated capillary in which ionisation occurs, effectively reducing ion losses and increasing sensitivity.

Read More thumbnail image: Increasing ions solvent-assisted inlet ionisation boosts sensitivity

Journal Highlight: Development and validation of LC-HRMS and GC-NICI-MS methods for stereoselective determination of MDMA and its phase I and II metabolites in human urine

Date: Jul 11, 2011

Author:

Three mass spectrometric methods involving LC/MS and GC/MS were derived and validated for evaluating the stereoselective elimination of phase I and phase II metabolites of MDMA in human urine.

Read More thumbnail image: Journal Highlight Development and validation of LC-HRMS and GC-NICI-MS methods for stereoselective determination of MDMA and its phase I and II metabolites in human urine

Pool party poopers: Swimmers and pool workers exposed to haloacetic acids

Date: Jul 1, 2011

Author: Steve Down

The exposure of swimmers and workers to the cytotoxic and carcinogenic haloacetic acids at indoor and outdoor swimming pools has been estimated by researchers in Spain from their urinary contents, revealing that ingestion is the major route of contact.

Read More thumbnail image: Pool party poopers Swimmers and pool workers exposed to haloacetic acids

Small and perfectly formed: Miniature mass spectrometer for field detection of chemical warfare agents

Date: Jun 15, 2011

Author: Steve Down

Chemical warfare agent simulants have been detected and measured using an automated miniature mass spectrometer designed to be deployed in the field for continuous facility monitoring, with analysis response times of 90 seconds.

Read More thumbnail image: Small and perfectly formed Miniature mass spectrometer for field detection of chemical warfare agents

Journal Highlight: GC-MS based metabolomics for rapid simultaneous detection of E. coli and Salmonella food-borne pathogens in ground beef and chicken

Date: Jun 13, 2011

Author:

A metabolomic-based method for the rapid detection and discrimination of food-borne pathogens used GC/MS with principal components analysis and will be critical to reduce food-related disease outbreaks and product recalls.

Read More thumbnail image: Journal Highlight GC-MS based metabolomics for rapid simultaneous detection of E_ coli and Salmonella food-borne pathogens in ground beef and chicken

Fire retardants on flood plains: Transfer to soil, grass and cows' milk when rivers flood their banks

Date: Jun 1, 2011

Author: Steve Down

When rivers break their banks and flood neighbouring pasture, polybrominated flame retardants from the sediments contaminate soil in the fields, according to a new UK study, but are not transferred efficiently to the grass or to the milk of grazing cows.

Read More thumbnail image: Fire retardants on flood plains Transfer to soil grass and cows milk when rivers flood their banks

Gently does it: SIMS of drug-polymer composites separates spectra of individual components

Date: May 15, 2011

Author: Steve Down

A version of secondary ion mass spectrometry, known as gentle-SIMS, has been used to separate the mass spectra of a drug from that of its polymeric carrier matrix in a process likened to chromatographic separation, which can be carried out in real time.

Read More thumbnail image: Gently does it SIMS of drug-polymer composites separates spectra of individual components

Journal Highlight: GC/MS based hair steroid profiling may reveal pathogenesis in hair follicles of the scalp

Date: May 9, 2011

Author:

A GC/MS method of steroid profiling, including androgens, progestins, corticoids and sterols, was developed to evaluate the concentrations of steroids as well as the activities of the enzymes responsible for steroidogenesis in hair.

Read More thumbnail image: Journal Highlight GCMS based hair steroid profiling may reveal pathogenesis in hair follicles of the scalp

Decontaminating illicit drug labs: DART speeds up screening

Date: May 1, 2011

Author: Steve Down

A rapid procedure has been established by US government scientists for the detection of illegal drugs on surfaces using ambient mass spectrometry, to ensure decontamination of ex-drug labs before they are made accessible to the public.

Read More thumbnail image: Decontaminating illicit drug labs DART speeds up screening
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