A student pipettes a liquid sample for testing heavy metal contamination in water samples in the Nicoll Lab at the Center for Environmental Systems.
Testing heavy metal contamination in water samples in the Nicoll Lab at the Center for Environmental Systems.
Center for Environmental Systems photo.
Students of Dr. David Vaccari take a sample of water from the Passaic river to test for bacteria and other contaminants.
Dr. Xiaoguang Meng's PhDs work in the Nicoll Lab on a SERS analysis method for testing arsenic contamination.
Place a drop of water on this glass, which is covered by functionalized silver nanoparticles, and any arsenic will affix to the silver particles. Then, shoot a laser beam on the sample surface. The presence of arsenic will enhance the Raman scattering by one million times or more, making it a very sensitive method for supporting a portable arsenic analyzer system.