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Welcome to the April issue of EVISA's Speciation Newsletter !
The stability of chemical species is challenging accurate speciation analysis. Species transformation during analysis must be avoided. Such transformation may be observed during all steps of the analytical procedure, since different species are in thermodynamic equilibrium and any chance of the parameters such as temperature, pH, redox potential or chemical composition might shift the equilibrium. The more drastic the changes are, the more severe are the species transformation expected. The procedure meant to extract species from solid sample materials is especially prone to such species transformation, since often the process is assisted by additional energy in form of heat, ultrasound or microwave irradiation, and changing the chemical environment by acids and solvents. The analyst has the difficult task to develop an extraction procedure that is effective to extract the different species quantitatively from the sample matrix without changing the speciation. Japanese researchers recently studied the arsenic species transformation during acid extraction of rice. They identified monomethylmono-thioarsonic acid as the major product generated from monomethyl-arsonic acid (MMA) originally present in rice (see the news below).
Species identification and quantification often calls for standards for comparison and calibration. Species stability is an issue, that has to be evaluated by producers of certified reference materials supporting speciation analysis. The stability of the arsenic compound standard solutions currently supplied by the National Metrology Institute of Japan (NMIJ) (CRM 7901-a arsenobetaine (AsB), 7912-a As(V), and 7913-a dimethylarsinic acid (DMA) solutions) was studied for the past 13 years or more since they were certified. The results showed that the measurements stayed within the given certificate even 13 years after production (see the news below).
After a long time of virtual events, most organizers have switched back to in-person meetings sometimes offering virtual channels for those who wish to follow the conference on-line. The EVISA Agenda of Events will keep you informed about the development.
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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.
Unfortunately, this month we have not seen any publication related to speciation analysis of general interest. In case that you feel that we missed something, we would be happy to receive a notification.
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.
Identification of Monomethylmonothioarsonic Acid as the Major Thioarsenical Generated During Extraction of Arsenic Species from Rice
Japanese researchers studied the arsenic species transformation during acid extraction of rice. They identified monomethylmono-thioarsonic acid as the major product generated from monomethyl-arsonic acid (MMA) originally present in rice.
 more
The long-term stability of arsenic species in certified reference materials NMIJ CRMs 7901-a, 7912-a, and 7913-a
The stability of the arsenic compound standard solutions currently supplied by the National Metrology Institute of Japan (NMIJ) (CRM 7901-a arsenobetaine (AsB), 7912-a As(V), and 7913-a dimethylarsinic acid (DMA) solutions) was studied for the past 13 years or more since they were certified.
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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.
HPLC 2023: 51st International Symposium on High Performance Liquid Phase Separations and Related Techniques
Date: June 18,2023 - June 22,2023
Location: Düsseldorf, Germany
April 26,2023 Early registration at reduced fee
May 11,2023 Submission of abstracts for poster presentations
Euroanalysis XXI
Date: August 26,2023 - August 31,2023
Location: Geneva, Switzerland
April 30,2023 Submission of abstracts
Please do not hesitate to inform us in case that your conference related to speciation analysis is missing in our Agenda.
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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SETAC Europe 33rd Annual Meeting
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Location:
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Dublin, Ireland
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Date:
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30.04.2023 - 04.05.2023
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DGMS 2023: 54th Annual Conference of the DGMS
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Location:
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Dortmund
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Date:
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14.05.2023 - 17.05.2023
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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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NAWLA 2023: 4th North American Workshop on Laser Ablation
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Location:
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University of Notre Dame, IN 46556 USA
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Date:
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05.06.2023 - 09.06.2023
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16th ISABC: 16th International Symposium on Applied Bioinorganic Chemistry,
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Location:
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Ioannina, Greece
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Date:
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11.06.2023 - 14.06.2023
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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
Postdoctoral
Icahn School of Medicine at Mount Sinai: Postdoctoral Research Fellowship in Biomarker Development
We are seeking a full-time Postdoctoral Research Fellow to join the Senator Frank R. Lautenberg Environmental Health Sciences Laboratory at the Icahn School of Medicine at Mount Sinai. The Lautenberg Lab is focused on discovering new biomarkers of environmental exposures, particularly in childhood, and is involved in multi-national studies targeting health outcomes such as neurodevelopment and autism spectrum disorder.
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Other
Icahn School of Medicine at Mount Sinai: Associate Researcher
We are seeking a full-time Associate Researcher to join the Senator Frank R. Lautenberg Environmental Health Sciences Laboratory at the Icahn School of Medicine at Mount Sinai. The Lautenberg Lab is focused on discovering new biomarkers of environmental exposures, particularly in childhood, and is involved in multi-national studies targeting health outcomes such as neurodevelopment and autism spectrum disorder.
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Icahn School of Medicine at Mount Sinai: Lab Manager - Laser Ablation ICP-MS Biomarker Development Lab
We are seeking a full-time Lab Manager to join the Senator Frank R. Lautenberg Environmental Health Sciences Laboratory at the Icahn School of Medicine at Mount Sinai. The Lautenberg Lab is focused on discovering new biomarkers of environmental exposures, particularly in childhood, and is involved in multi-national studies targeting health outcomes such as neurodevelopment and autism spectrum disorder.
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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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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.
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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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Copyright 2023 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.
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