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Welcome to the November issue of EVISA's Speciation Newsletter !
Chromium is one of the most often studied element with respect to speciation analysis. The reason is the very different toxicity of the two oxidation states of chromium that can be found in the environment. While Cr(III) is considered to be beneficial for the metabolism of glucose, Cr(VI) is classified as a group 1 carcinogen. Since chromium is used in various industries, rules and regulations are established in many countries, meant to restrict the release of Cr(VI) to the environment and the exposure of humans. Unfortunately, the accurate quantification of the two species within different sample types is challenging. Since both species are in thermodynamic equilibrium, interconversion between Cr(III) and Cr(VI) can happen during the different steps of analysis, depending on pH, presence of other redox species and temperature. In cases, where such interconversion cannot be excluded, the only possibility for meaningful analysis is to monitor such reactions with isotope tracers. Especially high separation power is required, when Cr(VI) has to be quantified in presence of very high concentrations of Cr(III). Often applied separation techniques such as liquid-liquid extraction, cloud point extraction, or solid-phase extraction seldom have the required selectivity for such purpose. Even chromatographic separation providing baseline separation of the two species might run into problems, when Cr(III) concentrations are orders of magnitude higher than Cr(VI). Researchers from Italy and the UK have developed a speciation method for particulate matter that produces accurate results for Cr(VI) even in presence of high concentrations of Cr(III) (see the news below).
Such and other questions related to speciation analysis by using plasma spectrochemistry will be discussed during the 2023 European Winter Conference on Plasma Spectrochemistry (EWCPS2023), taking place January 29th to February 3rd, 2023 in Ljubljana, Slovenia.
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NEWS
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EVISA is keeping you updated with what is going on in speciation analysis. In this section you will find news about the most current research results, about trends, legal issues and information from manufacturers in the field of speciation analysis.
With all the links to further information and publications the News archive is a valuable collection of "hot topics" in speciation analysis. We continuously update even former news with new links and information so that all news are actual all the time.
The Determination of Hexavalent Chromium in Airborne Particulate Matter in Presence of High Amounts of Trivalent Chromium
Researchers from Italy and the UK developed a chromium speciation method for particulate matter that produces accurate results for Cr(VI) even in presence of high concentrations of Cr(III).
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EVENTS
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With
a list of about 50 current entries EVISA is informing you about
interesting events and keeps you updated with their deadlines. By
consulting our list of deadlines you won't miss the opportunity for
early registration at reduced fee or the chance to submit your
contribution in time.
EWCPS 2023: European Winter Conference on Plasma Spectrochemistry
Date: January 29,2023 - February 3,2023
Location: Ljubljana, Slovenia
December 12,2022 Submission of abstracts for late poster presentations
ANAKON 2023
Date: April 11,2023 - April 14,2023
Location: Vienna, Austria
December 1,2022 Submission of abstracts
December 15,2022 Announcement of acceptance
December 31,2022 Early registration at reduced fee
Please do not hesitate to inform us in case that your conference related to speciation analysis is missing in our Agenda.
AsBIC10: 10th Asian Biological Inorganic Chemistry Conference
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Location:
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Kobe, Japan
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Date:
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28.11.2022 - 03.12.2022
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ICCST-15: 15th International Conference on the Chemistry of Selenium and Tellurium
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Location:
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Florianópolis, Brazil
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Date:
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28.11.2022 - 02.12.2022
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EWCPS 2023: European Winter Conference on Plasma Spectrochemistry
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Location:
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Ljubljana, Slovenia
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Date:
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29.01.2023 - 03.02.2023
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PittCon 2023: 73th Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy
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Location:
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Philadelphia, PA
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Date:
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18.03.2023 - 22.03.2023
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ANAKON 2023
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Location:
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Vienna, Austria
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Date:
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11.04.2023 - 14.04.2023
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71st ASMS Conference on Mass Spectrometry and Allied Topics
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Location:
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Houston, Texas
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Date:
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04.06.2023 - 08.06.2023
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VACANCIES
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EVISA provides information about open positions for Ph.D. students, PostDocs and permanent staff in the field of speciation. Looking to fill a vacancy or needing a new career challenge? Either way this service is FREE. Many laboratories and research facilities (from Greenland to Crete) have already found their highly educated stuff through this service by EVISA. If you would like to post an open position here, please contact us at info@speciation.net !
Doctorates
Europe: Mercury Biogeochemistry
The EU H2020 programme is financing a Marie-Curie training network on 'mercury biogeochemistry' over the next four years (2020-2023). A total of 15 PhD positions are open throughout Europe on a variety of topics, some including ICPMS or mass spectrometry.
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Postdoctoral
Lorraine University: Modelling metal binding to environmental humic nanoparticles
The group ‘’Physical Chemistry and Reactivity of Surfaces And interfaces’’ (PhySI) of the Interdisciplinary Laboratory for Continental Environments (LIEC) at the University of Lorraine has an open position for an 13-Month Postdoctoral fellowship related to "Modelling metal binding to environmental humic nanoparticles: theory and application to data interpretation".
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Other
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DIRECTORY
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EVISA's directory of scientist is a versatile tool to facilitate contact with scientists in the field of speciation and related sciences. The directory is fully searchable for names, addresses, research topics etc. You should bookmark this directory as an always up-to-date address book. (In order to hinder SPAM robots for collecting the E-mail accounts, we hide them in a special format).
More than 290 active scientists in the field of speciation analysis already joined the directory. Join this great directory that is extensively linked to all type of other information on this site, such as homepages, conferences and literature.
If your entry is still missing in this directory, please contact us at info@speciation.net.
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LINKS
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EVISA provides an easy access to external information. Our database contains more than 2800 links to relevant information from numerous top scientific resources spread over the whole Web. The database is searchable both via full-text and categories such as elements, type of species and type of information. We are permanently updating our links section.
If your web site is missing here, please e-mail your link information to info@speciation.net.
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Please feel free to pass this Speciation Newsletter to others who may benefit from EVISA. If you have any contributions or suggestions, please send these to editors@speciation.net.
This is a post-only e-mail. Please do not reply to this message. For all inquiries, problems or suggestions regarding this service, please visit http://www.speciation.net or contact info@speciation.net
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Disclaimer
No responsibility is assumed by the publisher for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions or ideas contained in the material herein. The Newsletter represents only the opinion of the authors and does not necessarily reflect the opinion of the European Community. The European Community is not responsible for any use that might be made of the information provided.
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