Mass Spectroscopy (IMAGE) DOE/Pacific Northwest National Laboratory Caption Sample introduction for PNNL's inductively coupled plasma mass spectrometer, which just set a new global standard for detecting ultra-low levels of radiation in gold samples. Credit (Photo by Andrea Starr | Pacific Northwest National Laboratory) 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.