Welcome to the July issue of EVISA's Speciation Newsletter !

High-technology metals — such as the rare earth elements (REE) — have become emerging contaminants in the aquatic environment. While the anthropogenic input of these metals into the aquatic environment is clearly detectable, little is known about their environmental impact.

Researchers from the University of Bremen (Germany) now investigated the bioavailability of some rare earth pollutants discharged into the rivers Rhine and Weser. Their results clearly indicate that the bioavailability of gadolinium, samarium and lanthanum differ greatly from each other. While samarium and lanthanum pollution in the river water could also be traced into the shells of freshwater mussels, gadolinium was not bioavailable for the mussels. Such different behavior could be explained by the speciation of the metals. (see the news below).

Speciation analysis of solid sample materials is often complicated by the sample preparation necessary for detection methods requiring liquid samples. Especially when target species only differ in their oxidation state, species conversion during sample preparation is a potential error source. A group of researcher from Spain investigated the conditions for accurate determination of hexavalent chromium in agricultural soils. Their results show that accurate quantification of Cr(VI) is possible by species-specific isotope dilution analysis after careful optimization of the extraction procedure (see the news below).

There are only two weeks left in this month which is traditionally a holiday month with reduced activities with respect to international meetings before the conference season re-starts in August (see EVISA's Agenda of Events).


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.

Incorporation of rare earth elements in the shell of freshwater mussels as an indicator for their bioavailability from polluted river water
A new study show that anthropogenic input of gadolinium into the rivers Rhine and Weser is not bioavailable to freshwater mussels.

Accurate determination of hexavalent chromium in agricultural soil
Accurate determination of hexavalent chromium in soil is hampered by its reduction during extraction. Optimized extraction conditions minimize such reduction allowing for accurate determination by speciated isotope dilution analysis.

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 2015: The Great Scientific Exchange
Date:     September 27,2015 - October 2,2015
Location:     Rhode Island Convention Center, Providence, RI, USA
July 31,2015    Submission of abstracts for poster presentations

PittCon 2016: 45th Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy

Date:     March 6,2016 - March 11,2016
Location:     Atlanta, GA, United States
August 14,2015    Submission of abstracts

Please do not hesitate to inform us in case that your conference related to speciation
analysis is missing in our Agenda.

2015 NEMC: National Environmental Monitoring Conference
Location: Hyatt Regency in Chicago, IL.
Date: 13.07.2015 - 17.07.2015

ICBIC17: 17th International Conference on Biological Inorganic Chemistry
Location: Beijing, China
Date: 20.07.2015 - 24.07.2015

CSI 2015: Colloquium Spectroscopicum Internationale
Location: Figueira da Foz, Portugal
Date: 30.08.2015 - 03.09.2015

CEST2015: 14th International Conference on Environmental Science and Technology
Location: Rhodes, Greece
Date: 03.09.2015 - 05.09.2015

Location: Bordeaux, France
Date: 06.09.2015 - 10.09.2015

Metallomics-2015: Vth International Symposium on Metallomics
Location: Beijing, China
Date: 09.09.2015 - 12.09.2015


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 !


NIFES, Bergen: Mineral speciation analysis, requirement and availability in salmon
NIFES (National Institute of Nutrition and Seafood Research) in Bergen, Norway has a 3-year PhD student position available in the Fish Nutrition research program. The aim of the project is to investigate practical mineral requirements and availability in current feeds for Atlantic salmon.

Umeå University: Mercury Biogeochemistry
Umea University, Department of Chemistry has an open position for a PhD student in the field of mercury biogeochemistry.




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.



EVISA provides an easy access to external information. Our database contains more than 2700 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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