Identification of lignin oligomers in Kraft lignin using ultra-high-performance liquid chromatography/high-resolution multiple-stage tandem mass spectrometry (UHPLC/HRMSⁿ).

ABSTRACT: Kraft lignin is the main source of technically produced lignin. For the development of valuable products based on Kraft lignin, its molecular structure is important. However, the chemical composition of Kraft lignin is still not well known. So far, the analysis of Kraft lignin by mass spectrometry (MS) has been mainly focused on monomeric compounds. Previous MS studies on lignin oligomers (LOs) considered only synthesised LO standards and/or lignins produced by processes other than the Kraft process. Furthermore, published MS methods suffer from using high resolution only in the MS¹ stage in multiple-stage tandem MS methods. A high resolution in all MSⁿ stages would provide more detailed information about LO fragmentation pathways. Since lignin samples are complex mix

SUBMITTER: Prothmann J 

PROVIDER: S-EPMC6244760 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature