Young-Jin Lee, DOE/Ames Laboratory (IMAGE) DOE/Ames National Laboratory Caption Young-Jin Lee, a scientist at the US Department of Energy's Ames Laboratory, has successfully demonstrated the use of matrix-assisted laser deposition/ionization-mass spectrometry to map the distribution of metabolites in plant tissues. Credit DOE's Ames 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.