| |
 |  |
|
|
| |
| |
| |
Welcome to the August issue of EVISA's Speciation Newsletter!
Different toxicity for the different species of an element is one of the main motivation for doing speciation analysis. The difference can result from differences in uptake because of different bioavailability, differences in the distribution within the organism or different activity on the target organ.
Methylmercury has not only higher toxicity in
comparison to inorganic mercury, also the different target organs.
Methylmercury can cross the blood-brain-barrier and therefore shows
important neurotoxicity. Humans are mainly exposed to methylmercury via seafood. An intensive research is focusing on the processes involved in the transformation of mercury to methylmercury and its introduction to the marine food web. A new study now has identified bacterial activities in arctic ice as a new source (see the news below).
Another question for investigating health risks is the metabolic transformation of species once they are taken up. Researchers now have investigated the metabolism of inorganic arsenic and have identified two new methyldithioarsenicals (see the news below).
Whether the metabolites are more or less toxic than the species taken up is another question of concern for studying toxicity. In order to elucidate the metabolism of selenium, five low molecular weight
species of selenium were investigated regarding their toxicological
effects, cellular bioavailability and species-specific metabolism in
human cells (see the news below).
|
|
| |
|
NEWS
|
| |
| |
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 informations 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.
Toxicity and bioavailability of different selenium metabolites
To further elucidate the metabolism of Se, five low molecular weight species of selenium were investigated regarding their toxicological effects, cellular bioavailability and species-specific metabolism in human cells.
 more
Researchers found new sulfur-containing metabolites in the urine of rats exposed to arsenite
An international research team led by X. Chris Le from the University of Alberta has identified methylated dithioarsenicals in the urine of rats fed with sodium arsenite.
more
New study identifies source of methylmercury in Southern Ocean sea ice
Methylmercury, a potent neurotoxin has been found in sea ice in the Southern Ocean, according to new research. This latest study demonstrates how sea ice bacteria can change mercury into its more hazardous form, contaminating marine life and birds.
more
|
| |
|
EVENTS
|
| |
| |
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.
 more infos...
SciX 2016: The 43rd Annual North American Meeting of the Federation of Analytical Chemistry and Spectroscopy Societies (FACSS)
Date: September 18,2016 - September 23,2016
Location: Minneapolis, Minnesota, USA
September 1,2016 Early registration at reduced fee
4th Workshop on Field-Flow Fractionation – Mass Spectrometry (FFF-MS)
Date: September 29,2016 - September 30,2016
Location: Vienna, Austria
August 31,2016 Registration
EWCPS 2017: European Winter Conference on Plasma Spectrochemistry
Date: February 19,2017 - February 24,2017
Location: Sankt Anton, Austria
September 1,2016 Submission of abstracts
September 30,2016 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.
IAP2016: 9th International Conference 'INTERFACES AGAINST POLLUTION'
|
Location:
|
"Centre Transfronterer", in Lleida, Catalonia, Spain
|
|
Date:
|
04.09.2016 - 07.09.2016
|
more
|
|
TraceSpec 2016: 15th Workshop on Progress in Trace Metal Speciation for Environmental Analytical Chemistry
|
Location:
|
Gdansk, Poland
|
|
Date:
|
04.09.2016 - 07.09.2016
|
more
|
|
ICHMET 2016: 18th International Conference on Heavy Metals in the Environment
|
Location:
|
Ghent University in Ghent, Belgium
|
|
Date:
|
12.09.2016 - 15.09.2016
|
more
|
|
25. ICP-MS Anwendertreffen und 12. Symposium Massenspektrometrische Verfahren der Elementspurenanalyse
|
Location:
|
Universität Siegen, Germany
|
|
Date:
|
12.09.2016 - 15.09.2016
|
more
|
|
SciX 2016: The 43rd Annual North American Meeting of the Federation of Analytical Chemistry and Spectroscopy Societies (FACSS)
|
Location:
|
Minneapolis, Minnesota, USA
|
|
Date:
|
18.09.2016 - 23.09.2016
|
more
|
|
8. TXRF-und μXRF-Workshop
|
Location:
|
Münster, Germany
|
|
Date:
|
26.09.2016 - 28.09.2016
|
more
|
|
|
| |
|
VACANCIES
|
| |
| |
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
Bundesanstalt für Gewässerkunde (BfG): Diplom-/Masterarbeit: Entwicklung von speziesanalytischen Methoden zum Nachweis und Untersuchung von metallbasierten Antifouling Bioziden in aquatischen Matrizes
Ziel der ausgeschriebenen Diplom-/Masterarbeit (Chemie, Umweltwissenschaften und verwandten Studiengängen) ist die Entwicklung komplementärer speziesanalytischer Methoden zur Identifizierung und Quantifizierung relevanter metallbasierter Biozide und Spezies der Verbindungen in aquatischen Matrizes.
more
SCK-CEN Belgium: Development and validation of HPLC-SF-ICP-MS methodologies for characterization of spent nuclear fuel
The Belgian Nuclear Research Centre (SCK•CEN) recently opened its call for PhD and post-doc positions (2016 campaign). Two challenging research topics on SF-ICP-MS method development are offered for this purpose by the Radiochemistry expert group.
more
Umeå University: Mercury Biogeochemistry
Umea University, Department of Chemistry has an open position for a PhD student in the field of mercury biogeochemistry.
more
Postdoctoral
Other
National Research Council Canada: Research Associate, Analytical Chemistry
We are looking to fill one or more Research Associate (RA) positions to support our Measurement Science and Standards Portfolio. The RA would be someone who shares our core values of impact, accountability, leadership, integrity and collaboration.
more
|
| |
|
DIRECTORY
|
| |
| |
|
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 280 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.
more
|
| |
|
LINKS
|
| |
| |
|
EVISA provides an easy access to external information. Our database contains more than 2750 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.
more
|
| |
This issue of evisa's Speciation Newsletter has been sent to you by EVISA, because you have registered for this service. If you would like to modify your user account, please log-in on EVISA's web portal at http://www.speciation.net with your username and password and edit your user account.
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
|
| |
Copyright 2016 EVISA
All rights reserved. Any unauthorized use, reproduction, or transfer of this message or its contents, in any medium, is strictly prohibited. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of EVISA.
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.
|
|
|
