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

To follow publications related to chemical "speciation" is not an easy task, simply because the term "speciation" is used by different researchers with different meaning. Biologist use the term speciation for the evolutionary process by which populations evolve to become distinct species. IUPAC has defined, what chemist should call speciation, namely the distribution of an element amongst defined chemical species in a system. "Speciation analysis" then is the analytical activity to identify and/or measuring the quantity of one or more of these chemical species. Unfortunately, authors do not really stick to this rule and often use the term "speciation" when they have differentiated some fractions of the analyte element by a separation technique. Such behavior is leading to misinterpretation of findings and should be avoided. There are many papers published, in which authors claim to have found "hexavalent chromium" in biological materials such as foodstuffs when actually they have just analyzed a leachable fraction of chromium. Reviewers of such work should reject these manuscripts, in which authors talk about "speciation" when they simply performed "fractionation" (see the news below). 

Toxicity is clearly related to species and not to elements, a fact that we have to stress against oversimplifications appearing in the media.  A U.S. peer review panel lately agreed on the classification of antimony trioxide as a carcinogen. This voting
could be significant in the EU, where the German REACH and CLP competent authority, Bundesanstalt für Arbeitsschutz und Arbeitsmedizin (BAuA), is to begin evaluating antimony trioxide – along with antimony sulfide and antimony metal – in March. Industry is concerned that the results could lead to stricter regulation (see the news below).

We frequently report about the global pollutant mercury that is present in our environment as different species that have different toxicity but are altogether a real health hazard for humans and animals. Researchers now discovered the world's largest amount of mercury trapped inside the frozen ground in permafrost regions. An alarming finding since the
permafrost continues to thaw in the future due to climate change (see the news below).

Selenium is an essential element that occurs in some species that can reduce the toxicity of mercury. It also occurs in special selenoproteins.
200 years after its discovery, German scientists could demonstrate a specific and indispensable role of selenium for the survival of mammals. As an essential part of the enzym GPX4, selenium is protecting certain neurons from cell death by suppressing peroxide-induced ferroptosis (see the news below). 


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.

Essentiality of selenium for brain development
200 years after its discovery, scientists from the German Research Center for Environmental Health (Helmholtz Zentrum München) and the University of Düsseldorf could demonstrate a specific and indispensable role of selenium for the survival of mammals. As an essential part of the enzym GPX4, selenium is protecting certain neurons from cell death by suppressing peroxide-induced ferroptosis.

Huge Amounts of Toxic Mercury Found Hidden in the Arctic Permafrost
Researchers have discovered the world's largest amount of toxic mercury trapped inside the frozen ground in permafrost regions.

U.S. Peer review panel agrees on the classification of antimony trioxide as a carcinogen
A US peer review panel has voted to accept the three key outcomes of a draft assessment of antimony trioxide that concludes the substance is 'reasonably anticipated' to be a human carcinogen.

Speciation vs Fractionation
Many authors reporting analytical work related to elemental composition use the term "speciation" implying to report about "speciation analysis" when they actually have used fractionation techniques. Some of them even go one step further and report to have determined a specific elemental species, when they actually have only determined an operationally defined elemental fraction. Such wrong statements should not be accepted in publications and should be rejected by reviewers.

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...

ISEAC40: Environmental & Food Monitoring Conference
Date:     June 19,2018 - June 22,2018
Location:     Santiago de Compostela
March 1,2018    Submission of abstracts for oral presentations
March 1,2018    Submission of abstracts for poster presentations
April 1,2018    Early registration at reduced fee
June 1,2018    Regular registration

BNASS 2018: The 19th Biennial National Atomic Spectroscopy Symposium
Date:     July 2,2018 - July 4,2018
Location:     London, United Kingdom
February 28,2018    Submission of abstracts for oral presentations
February 28,2018    Submission of abstracts for poster presentations
May 31,2018    Early registration at reduced fee
June 21,2018    Registration

HPLC 2018: 47th International Symposium on High Performance Liquid Phase Separations and Related Techniques
Date:     July 29,2018 - August 2,2018
Location:     Washington, DC, USA
February 21,2018    Submission of abstracts for oral presentations
March 31,2018    Early-bird registration at lowest fees
May 31,2018    Submission of abstracts for poster presentations
June 8,2018    Registration at reduced fee

ISC 2018: 32nd International Symposium on Chromatography
Date:     September 23,2018 - September 27,2018
Location:     Cannes-Mandelieu, France
March 8,2018    Abstract submission
April 15,2018    Notification of acceptance
June 23,2018    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.

Pittcon 2018: 69th Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy
Location: Orlando, FL, USA
Date: 26.02.2018 - 01.03.2018

ESAS & CANAS 2018 & Anwendertreffen Plasmaspektrometrie
Location: Bundesanstalt für Materialforschung und -prüfung (BAM) Berlin, Germany
Date: 20.03.2018 - 23.03.2018

analytica 2018—26th International Trade Fair for Laboratory Technology, Analysis, Biotechnology and Analytica Conference
Location: Messe München. Munich, Germany
Date: 10.04.2018 - 13.04.2018

66th ASMS Conference on Mass Spectrometry and Allied Topics
Location: San Diego, CA, United States
Date: 03.06.2018 - 07.06.2018

9th Nordic Conference on Plasma Spectrochemistry
Location: Loen, Norway
Date: 10.06.2018 - 13.06.2018

ISEAC40: Environmental & Food Monitoring Conference
Location: Santiago de Compostela
Date: 19.06.2018 - 22.06.2018


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 !


Universitat de Lleida (Catalonia, Spain): Metal speciation
The thesis will extend the application of the electroanalytical technique AGNES (Absence of Gradients and Nernstian Equilibrium Stripping), such as the analysis of Zn in biological samples. Possible applications: human and animal health studies, ecotoxicology, environmental and food analysis. The thesis will have an experimental focus with the candidate working with potentiostats and polarographic stands.

Universitat de Lleida (Catalonia, Spain): Metal Speciation Simulation
The thesis will focus on the interpretation of the technique DGT (Diffusion Gradients in Thin Films), to gain an understanding of the measurements in mixtures of ligands, metal ions and other nutrients and contaminants. Possible applications: environmental, toxicological and agrifood studies (from dissolution of nanoparticles to the impact of metals and other nutrients and contaminants in natural waters). The thesis will have a theoretical focus with modeling and numerical simulation.


Toulouse, France: Exploring methylmercury compound specific stable isotope analysis to trace its origin and fate in marine ecosystems
Full‑time (2yr) position at the GET laboratory (OMP, Toulouse, France), and in collaboration with UMR LMD/IPSL (L. Bopp, Carbon Cycle, Climate Research), and UMR LEMAR (Brest, France, Marine Predator Foraging Ecology) (A. Lorrain).

University of Tasmamia: LA-ICP-MS
The University of Tamania is advertising for a 2-year postdoctoral position in LA-ICPMS.



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.



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.


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