Figure1 (IMAGE) Kanazawa University Caption A depiction of charge reduction process which is utilized as a pre-treatment process of mass spectrometry, MS (or ion mobility spectrometry, IMS). To increase the accuracy of spectrum, excess charges on the molecular ion (PEG in this figure) is removed via collision with anion in gas. Credit Kanazawa University Usage Restrictions The image may only be used with appropriate caption and credit. 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.