2021-01-22 Amino acids and amino sugars as indicators of the source and degradation state of sedimentary organic matter papers to read Amino acids and amino sugars as indicators of the source and degradation state of sedimentary organic matter Jin-E Wei, Yan Chen, Jian Wang, Shi-Bo Yan, Hong-Hai Zhang, Gui-Peng Yang, Marine Chemistry www.sciencedirect.com