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Welcome to the June issue of EVISA's Speciation Newsletter !
The speciation of chromium is one of very few topics that has entered legislation. The reason for that is obvious: while chromium is used in many industries, exposure to hexavalent chromium which is cancerogen, should be avoided. Because of the importance, one of the first workshops organized by EVISA (May 2004, Ljubljana) was dedicated to chromium speciation. One of the industries using chromium is the leather industry, using chromium sulfate for tanning the leather. While the tanning agent is a chromium (III) salt, it can be unintentionally oxidized into hexavalent chromium. Therefore, the European Union regulates Cr(VI) content to 3 mg/kg in leather products coming into direct contact with skin. A standard method for testing the leather is based on colorimetry using 1,5-diphenylcarbazide (DPC) for UV–Vis detection (ISO 17075) and offer a limit of quantification (LOQ) of 3 mg/kg for Cr(VI). The problems of using such method especially when analysing colored leather products where extensively discussed during the workshop, and the scientists were requested to develop better methodology. Now, 19 years later, a group of scientists from France have developed methods for the determination of chromium (III) and chromium (VI) species in tanned leather samples, allowing the determination of both species, even when there is a huge difference of concentration between them (see the news below).
Such slow progress is typical for topics regulated by rules and legislation. Rulemakers hesitate to request analytical procedures calling for expensive instrumentation often arguing, such methodology not yet being state-of-the-art. Often the balance between limiting the exposure of consumers to a safe level and limiting the expense of the producers for testing and limiting contamination is chosen in favour of economics. An example for this behavior is the decision of FDA to set a nonenforceable guidance level of 10 ppb arsenic in apple juice. This is the exact same level proposed by the agency 10 years ago (see the news below).
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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.
FDA sets 10 ppb limit for inorganic arsenic in apple juice
10 years after FDA issued its draft guidance on arsenic in apple juice, the agency has announced the same level as final guidance.
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Determination of chromium species in tanned leather samples
A group of scientists from France have compared, optimized and validated methods for the determination of chromium (III) and chromium (VI) species in tanned leather samples. The final method was applied to real samples, allowing the determination of both species, even when there is a huge difference of concentration between Cr(III) and Cr(VI).
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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.
65th ICASS: 65th International Conference on Analytical Sciences and SpectroscopyDate: July 26,2023 - July 28,2023
Location: Delta Ottawa City Centre, Ottawa, Canada
June 23,2023 Submission of abstracts for late poster presentations
July 11,2023 Late registration
Euroanalysis XXI
Date: August 26,2023 - August 31,2023
Location: Geneva, Switzerland
June 30,2023 Early registration at reduced fee
7th IMEKOFOODS
Date: October 25,2023 - October 27,2023
Location: Maisons-Alfort, Paris, France
June 30, 2023 Notification of acceptance
Please do not hesitate to inform us in case that your conference related to speciation analysis is missing in our Agenda.
HPLC 2023: 51st International Symposium on High Performance Liquid Phase Separations and Related Techniques
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Location:
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Düsseldorf, Germany
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Date:
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18.06.2023 - 22.06.2023
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CSI XLIII/ASLIB2023: Colloquium Spectroscopicum Internationale/ 5th AsianSymposium on Laser Induced Breakdown Spectroscopy
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Location:
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Tokushima, Japan
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Date:
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26.06.2023 - 30.06.2023
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PBA2023: 33rd International Symposium on Pharmaceutical and Biomedical Analysis
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Location:
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Ankara, Turkey
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Date:
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02.07.2023 - 06.07.2023
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Goldschmidt 2023
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Location:
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Lyon, France
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Date:
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09.07.2023 - 14.07.2023
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EMS 2023: Environmental Measurement Symposium
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Location:
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Minneapolis, MN, USA
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Date:
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13.07.2023 - 03.07.2023
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ICBIC20: 20th International Conference on Biological Inorganic Chemistry
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Location:
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Adelaide Convention Centre, Australia
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Date:
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16.07.2023 - 21.07.2023
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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.
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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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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