Ethylmercury is a major component of thimerosal, a vaccine preservative, and it has neurotoxic effects that are similar to those of methylmercury, but its tissue deposition and clearance rates in organisms are not well-understood. In order to better understand the tissue deposition patterns of mercury originating from vaccines, a rapid, sensitive, simple analytical method for determining mercury species in biological tissues was developed at Brooks Rand Labs and our own Dr. Joel Creswell presented our findings at the 33rd Annual Meeting of the Society of Environmental Toxicology and Chemistry. To download the poster click here or contact us to learn more about our specialized analytical services for the determination of mercury and mercury species in biological tissues.
The AOAC Annual Meeting brings us science-based research from the top scientists in the world, technical information about changes and advances in methodology, and access to techniques and applications, for the chemical analysis of food, beverages, and other consumer products.
Visit us in Chicago August 25-28 for the AOAC’s 127th Annual Meeting & Exposition where Brooks Rand Labs President and co-chair of the AOAC Metals Subgroup, Michelle Briscoe, will be giving a talk in the “New Blood 2013: Developing Methods for Detection of Chemical Contaminants” session. Ms. Briscoe’s presentation will report on the largest interlaboratory comparison study performed to-date for the analysis of arsenic speciation in food and beverages. The full report will be available in next month’s newsletter… STAY TUNED!
In order to achieve the ambient level detection limits required by the Clean Water Act, the EPA developed a number of analytical methods specifically for metals at “ultra-trace” levels. These methods include EPA 1630 for methylmercury, EPA 1631 for low-level mercury, EPA 1632 for arsenic species, EPA 1638 for trace metals, and EPA 1640 for trace metals specifically in seawater.
However, they found that one of the greatest difficulties in obtaining accurate data at such low concentrations was due to contamination occurring from the improper collection, handling, and transportation of samples.
Therefore, “clean” sample handling techniques were developed, as described in EPA 1669: Sampling Ambient Water for Trace Metals at EPA Water Quality Criteria Levels.
On September 13, 2013, Brooks Rand Labs will be holding a full-day training course in Seattle on the theoretical and practical application of EPA 1669. Register by August 15th and pay only $350 ($50 savings)! To learn more, view the EPA 1669 Training Course Brochure and Registration Form.
In addition to our exhibit booth, two members of the Brooks Rand Labs team will be presenting posters on Monday, June 8th, 4:00pm – 5:30pm:
Annie Carter (pictured) – A Technique for the Simultaneous Determination of Monomethyl and Monoethyl Mercury in Aqueous Samples
Aurana Lewis – Development of a More Robust Method for the Determination of Reactive Mercury [Hg(II)R] in Sediment Samples
Please come chat with Annie and Aurana about their fascinating research.
In case you missed us in Edinburgh last month at the 11th International Conference on Mercury as a Global Pollutant, Brooks Rand Labs Vice President of Operations, Annie Carter, gave an oral presentation on tracing the fate of mercury from vaccines. View the abstract.
Ms. Carter also illustrated the importance of monitoring the U.S. rice supply for toxic heavy metals and organometallic compounds with a study done on approximately twenty different rice samples. The results of the study were presented in her poster titled “Analysis of Methylmercury Contamination in U.S. Market Rice: A Health Risk to Consumers?” View the abstract.