Scientist and Device (IMAGE) DOE/Pacific Northwest National Laboratory Caption PNNL scientist Wassana Yantasee demonstrates the compact and field-portable biomonitoring device (foreground), which produces rapid, accurate results equivalent to state-of-the-art mass spectrometry systems (back) from small fluid samples. Credit PNNL Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.