Tungsten ETA
Tungsten filament electrothermal atomizers have been studied since the 1970s. However, they have never been fully commercialized. We think that the benefits of compact design, reduced resource consumption, and good analytical properties are worth another look.
Current projects focus on understanding how the power supply that we use affects the analytical results. We have two power supplies that offer 5 modes of operation and heating rates from 100 to 250,000 degree/second.
Prior Outcomes
We developed a method for determining the temperature of the filament from the applied voltage and current in real time.
Navarre, E. C.; Wallace, P. A Nonequilibrium Approach to Temperature Calibration for Tungsten Filament Atomic Spectrometry. Spectroscopy Letters 2014, 47 (4), 314–323. https://doi.org/10.1080/00387010.2013.803980.
Navarre, E. C.; Bright, L. K.; Osterhage, A.; Lada, B. Development of an N-Methyl Pyrrolidone Based Method of Analysis for Lead in Paint. Anal. Methods 2012, 4 (12), 4295. https://doi.org/10.1080/00387010.2013.803980.