Yesterday, Todd returned to us to train about 8 people from the River Center and other labs on the use of the new instrument, which is a slightly different model than the old MIMS. We also had lunch with about a dozen people where we discussed the different applications of the MIMS, including the different gases it can measure and the different kinds of samples it can measure (air, water; field samples, in line experiments, etc.). We are very excited to have this new capability in the lab, and look forward to all of the neat things we will learn with it!
A few weeks ago, Dr. Todd Kana delivered a new instrument to the River Center. The Membrane Inlet Mass Spectrometer, which Todd designs and builds, measures dissolved gases directly from water samples. We had one of these instruments in our lab at FIU, and used it to study denitrification in the Floridan Aquifer and in spring-fed and blackwater rivers.
Yesterday, Todd returned to us to train about 8 people from the River Center and other labs on the use of the new instrument, which is a slightly different model than the old MIMS. We also had lunch with about a dozen people where we discussed the different applications of the MIMS, including the different gases it can measure and the different kinds of samples it can measure (air, water; field samples, in line experiments, etc.). We are very excited to have this new capability in the lab, and look forward to all of the neat things we will learn with it! Tim Covino, along with McGlynn Lab grad students Kendra Kaiser and Erin Seybold, organized a demonstration day at our field site in New Hope Creek. The New Hope Creek project involves continuous monitoring of water chemistry and other variables to understand processes going in the terrestrial watershed and within the stream itself. Tim, Kendra, and Erin, along with many other members of the River Center, took this opportunity to educate members of the community about the things we measure, how we measure them, and why. Kris Voss of the Bernhardt lab helped find and identify stream invertebrates. As you can see, the recent rains had NHC running pretty high and turbid. One of the things we are hopnig to understand at NHC is how these floods influence metabolic processes and nutrient cycling. |
Welcome!This is the homepage of the Heffernan Lab at Duke University. Here you can find all sorts of information about our research, teaching, and outreach. If you have any questions, contact Dr. Heffernan. Dr. Jim HeffernanI am an Assistant Professor in the Nicholas School of the Environment at Duke University. My research is focused on the causes and consequences of major changes in ecosystem structure, mostly in streams and wetlands. Archives
May 2018
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