The news is reported in the latest edition of the Royal Society of Chemistry’s Journal of Analytical Atomic Spectrometry.
Organotin compounds are widely used as heat and light stabilisers in the production of plastics, and also as fungicides, pesticides, wood preservatives and antifouling paints.
But contamination of the environment by such compounds both in households and in waste sites presents a problem owing to their severe toxicity to humans.
Organotins are extremely neurotoxic and can cause organ failure – their ability to interact with fatty surfaces in cells such as cell membranes (known as lipophilicity) is thought to be one of the reasons behind this.
The measurement of contamination has not been easy in the past, and previous methods only provided an estimate of some toxic forms of tin, chiefly tributyl tin.
But Dr David Amouroux and a team at the University of Pau in Southern France have devised a strategy to completely analyse and quantify all alkylated tin compounds arising from landfill sites.
The technique consists of three optimised steps: nitric acid extraction, derivatisation, and chromatographic separation.
After addition of isotopically enriched butyltin, single analysis is all that is required to give a reliable estimates of all the organotins in a given sample. The procedure was successfully tested on three French landfill sites.
Dr Amouroux said: “Such a methodology can be extremely useful to assess the fate of organotin compounds, providing a specific, reliable and complete understanding of the environmental impact of this kind of effluent.”
Tony Kirby | alfa
Global threat to primates concerns us all
19.01.2017 | Deutsches Primatenzentrum GmbH - Leibniz-Institut für Primatenforschung
Reducing household waste with less energy
18.01.2017 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH
For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.
According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
23.01.2017 | Health and Medicine
23.01.2017 | Physics and Astronomy
23.01.2017 | Process Engineering